News: Industrial and Materials Science related to Chalmers University of TechnologyWed, 29 May 2019 14:21:14 +0200 in Energy Systems through Everyday Designs<p><b>​Sara Renström, PhD student at Design &amp; Human Factors IMS, defends her doctoral thesis on June 11.Title: Participating in Energy Systems through Everyday Designs – Exploring roles for households in a more sustainable energy future</b></p><strong>​Dissertation</strong><div><div>2019-06-11 10:00</div> <div>Virtual Development Laboratory (VDL), Chalmers Tvärgata 4 - 6</div> <div>Opponent: Annelise de Jong, IVL Environmental Science Research Institute, in Stockholm, Sweden</div></div> <div>Examiner: MariAnne Karlsson, Design &amp;Human Factors IMS</div> <div><br /></div> <div><strong>Abstract</strong></div> <div><div>As households we participate in energy systems when, in the course of our everyday energy-reliant activities, we create a demand for energy and when we engage in energy-managing activities such as choosing an energy provider and deciding to support a specific source of energy. In this way, everyday life has an impact on the energy sector, and vice versa. To mitigate climate change, the energy sector will have to reduce its negative environmental impact, and everyday life will have to change with it. This thesis aims at contributing to development of artefacts that, as they are embedded into energy-reliant and energy-managing activities in everyday life, support such changes. Four empirical studies were carried out in a research through design process with a ‘mixed methods’ approach. Two studies described which energy-reliant and energy-managing activities to design for by identifying what roles households could play in energy systems (RQ 1a). Two studies explored how artefacts shape those roles (RQ 1a) and prescribed ways to design to support reduced negative environmental impact (RQ 2). </div> <div><br /></div> <div>The findings showed that the roles households considered playing in energy systems were framed by (i) roles performed by peers, (ii) available and accessible energy-reliant and energy-managing artefacts, (iii) existing business models, (iv) available infrastructure, and (v) policy and regulation. The roles were framed into three so-called meta-roles named Reception, Interplay, and Balance.</div> <div><br /></div> <div>Within Reception, households receive standardised amounts and variants of services from the energy system, such as a pre-set indoor temperature.</div> <div>Within Interplay, the households’ meta-role is to use some kind of interplay with the energy system to optimise energy services for their individual preferences, for example low cost. Finally, within Balance, the households’ meta-role is to balance their individual preferences with what is preferable from an energy system perspective, for instance without benefits to be part of time-shifting energy use to cut peaks in demand.</div> <div><br /></div> <div>In Reception and Interplay, the reduction in environmental impact is restricted to either what can be achieved without households’ active contribution or when reductions in environmental impact align with personal preferences, respectively. Balance, although uncommon and therefore unvalidated, was therefore considered most promising to mitigate climate change.</div> <div><br /></div> <div>Evaluations of two prototypes intended to support reduced negative energy-related environmental impact showed such possibilities, and additionally that Reception and Interplay could be challenged by designing artefacts that: </div> <div><br /></div> <div>- encourage households to make compromises and ask for efforts;</div> <div><br /></div> <div>- make the connection between energy supply and demand explicit (reconnecting supply and demand);</div> <div><br /></div> <div>- provide a possibility to feel like active participants (instead of discouraging active participation through automation);</div> <div><br /></div> <div>- provide a possibility for influencing energy-related decisions made by energy companies or (local) authorities; and</div> <div><br /></div> <div>- focus on energy-reliant activities and not (only) on energy-managing activities. </div> <div><br /></div> <div>Artefacts are however just one of the five aspects found to frame meta-roles. In order to not only challenge but also change a prevailing meta-role, the other aspects would need to align.</div></div> <div><br /></div> <div><a href=""><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read the thesis</a></div> <div><a href="/en/Staff/Pages/sara-renstrom.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />More about Sara Renström</a></div> <div><br /></div>Mon, 20 May 2019 16:00:00 +0200 do we describe and evaluate the designs for complex aero-engine components?<p><b>​Visakha Raja, Industrial PhD student at Product Development​ IMS, defends his doctoral thesis on June 3.Title: How do we describe and evaluate the designs for complex aero-engine components?</b></p><strong>Dissertation​</strong><div><span style="background-color:initial">2019-06-03 09:00</span><div>Room EC, Hörsalsvägen 11, Göteborg</div> <div>Opponent: Associate Professor Marija Jankovic, Industrial Engineering, CentraleSupélec, Paris</div> <div>Examiner: Ola Isaksson, Product Development IMS</div> <div><br /></div> <div><strong>Abstract</strong></div> <div><div>An aero engine is a complex piece of equipment and the components inside it, such as the compressors, turbines and associated structural frames share this complexity. Designing components is difficult, not just due to the complexity but also due to the incremental nature of aero-engine development. It is not easy to pick out which component regions are interconnected in what ways, and to say exactly which regions satisfy what functions for the engine. This calls for development of methods to visually describe and quantitatively evaluate how an engine component satisfies its functional requirements. Moreover, addressing sustainability challenges demands radical improvements in present engine designs or proposal of new designs. As the engines in operation today are highly optimized, novel means must be identified to improve present designs or propose new designs. Good design builds on good methods and this research was focused on improving and adapting design methods for aero engine components such as its structural frames.</div> <div><br /></div> <div>A component level improvement in design that results in, say reducing aircraft fuel consumption even by 0.05%, can save several thousand USD for an airline company per year, and can reduce the environmental impact of aviation. Methods developed in this thesis identifies critical functions that an engine component satisfies and discover previously unseen inter-relationships among its functions. The methods also enable storing information about established designs and using it as a starting point for future designs. An un-complicated connection with manufacturing is also facilitated by providing a way for assessing the influence of different manufacturing options on component operation. Furthermore, by the development of a metric of complexity for engine components such as its structural frames, the research supports the comparison, optimization, and selection of various engine component designs. Together, the methods developed in this thesis will enhance a development engineer’s ability to evaluate alternative component designs and select the most suitable one. </div> <div><br /></div> <div>This thesis will be of interest to both practicing engineers and researchers concerned with engineering design in general and aero-engine component design in particular. </div></div></div> <div><br /></div> <div><a href=""><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read the thesis</a></div> <div><br /></div> <div><br /></div>Mon, 20 May 2019 16:00:00 +0200 and defects in railway materials<p><b>​Casey Jessop, PhD student at Engineering Materials IMS, defends her doctoral thesis.Opponent: Professor Sabine Denis, Univ Lorraine, Frankrike</b></p><span style="font-weight:700">Doctoral thesis defence</span><div>Casey Jessop</div> <div>​June 13 2019, 10.00</div> <span style="background-color:initial">VDL, Chalmers Tvärgata 4c</span><div><span style="background-color:initial"></span><strong>​</strong><div><strong>Popular description</strong><div><span style="background-color:initial">Railways are one of the cleanest forms of transport in terms of environmental footprint and CO2 emissions, so how can we convince more people to travel by train? We need to assure safety, efficiency, reliability, and comfort to the passengers. There are many parts that go into making sure all these conditions are met, including proper maintenance systems and a good knowledge of the damage in the metal parts. To predict and prevent delays, derailments, and rail fractures, we need to know why and how the materials fail. The focus of this work is on gaining a better understanding of the damage which occurs in railway component materials. </span></div> <div><br /><span style="background-color:initial"></span><div>In order to accommodate increasingly large demands on the railway infrastructure, the materials are sometimes subjected to extreme loads, speeds, and weather conditions. The combination of loadings affects the materials in a multitude of ways, including thermal and mechanical damage. Considering that the equivalent of ten tonnes is pushing down on a contact patch roughly the size of a dime on the rail head with each wheel passing, it is not hard to imagine why the materials eventually fail. This failure is usually manifested as cracks in the materials, which could potentially lead to rail breaks, for example. What’s more, the components are also subjected to extreme heating for short periods of time during braking and acceleration. These thermal events affect both cracking and bulk material properties.  </div> <div><br /></div> <div>The combination of both types of damage has been studied in the current work, including extensive characterization of materials taken from the field, recreation of certain types of defects in the lab, as well as investigation of their effect on crack initiation and growth in experiments. It was found that a combination of several characterization techniques can give an accurate description of crack networks below the surface. Furthermore, thermal damage in the form of white etching layers behave as crack initiation sites, and reduce the life of rail and wheel steels.</div> <div><br /></div> <div><a href=""><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read the thesis</a></div> <div><a href=""><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Casey Jessop LinkedIn</a></div> <div><br /></div> </div></div></div> ​Mon, 06 May 2019 15:00:00 +0200 Assessment Framework for Managing Corporate Sustainable Manufacturing<p><b>​Ilaria Barletta, Production Systems IMS, defends her doctoral thesis on June 4.Opponent: Prof. Steve Evans, Department of Engineering, Cambridge University, UK​</b></p><strong>Dissertation - Ilaria Barletta</strong><br /><div>2019-06-04 10:00</div> <div>Room EC, Hörsalsvägen 11, 5th floor, Chalmers University of Technology, Johanneberg campus</div> <div>Opponent: Prof. Steve Evans, Department of Engineering, Cambridge University, UK</div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial"><strong>Popular description</strong></span></div> <div><span style="background-color:initial">This research aims to support the manufacturing industry in the endeavour of achieving the seventeen sustainable development goals by 2030, with “sustainable production” (the 12th goal) being the key one it should achieve. </span><div><br /></div> <div>The output of this research is synthesised into a framework comprising assessment methods and tools which translate both economic and environmental sustainability factors into information for a specific set of company management decisions. These decisions are supported by the three guiding functions of the framework: </div> <div>1) alignment between sustainability strategy and operations through the definition of core organisational capabilities, </div> <div>2) assessment of the environmental impacts of R&amp;D technology for production systems, and </div> <div>3) improvement of the sustainability performance of existing production systems’ operations. </div> <div><br /></div> <div>Thus, the framework encompasses sustainability assessment methods and tools from a low level of analysis (machine tool) to a higher one (organisational). For the first function, an organisational “sustainability readiness” tool was developed with six companies. For the second function, an indicator for environmental break-even analysis of R&amp;D technologies aims to pre-emptively minimise any undesired backfire effects. For the third function, an energy-based version of the known overall equipment effectiveness indicator diagnoses energy inefficiencies in production. </div> <div>By highlighting a red thread between the three functions and by providing assessment solutions in each of them, the proposed assessment framework aims to support management in their task to measure sustainable manufacturing. The use of the framework would also mitigate the strategy-operations misalignment that sometimes affects corporate sustainability management. The overall qualitative nature of the framework makes it suitable to be considered by industrialists and academia as a conveyer of a mindset which leverages management’s capacity to improve sustainability performance. Unfortunately, the validity of this statement could not be tested. What has been validated to various extents though are the methods and tools within the framework itself. </div> <div><br /></div> <div>The author suggests that future research would enable manufacturing companies to quantify the long-term sustainability impacts of product life-cycles and production systems. If this could be encouraged, it would help to focus on eco-effectiveness performance, perhaps by taking an approach similar to Science Based Targets. Interventions such as these can contribute to a safer future that remains environmentally accountable at all levels of business operations.</div> <div><br /></div> <div>KEY WORDS</div> <div>energy efficiency, environmental sustainability, key performance indicators, life-cycle thinking, sustainability management, sustainable manufacturing, technology assessment</div> <div><br /></div> <div><a href=""><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read the thesis</a></div> <div><a href="/en/Staff/Pages/ilaria-barletta.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />More about Ilaria Barletta</a></div> <div><br /></div></div>Thu, 02 May 2019 00:00:00 +0200 quality at the graduate school product and production development<p><b>​The Swedish higher education authority has given Chalmers graduate school product and production development good assessments both in terms of the high scientific quality, and the connection to working life outside the academy.</b></p><div>​The adjudicating group, consisting of subject experts, doctoral students' representatives and working life representatives, believes that there are good conditions for keeping a high quality of the doctoral education product and production development. Among other things, they write in the report that the supervisors &quot;collectively report an impressive scientific publication&quot;, and that &quot;research in the current environment has such a quality and scope that postgraduate education can be conducted at a high scientific level and with good educational conditions&quot;.</div> <div> </div> <div>It is also believed that the design, implementation and examination of the education ensures that the doctoral students &quot;show intellectual independence, and scientific honesty as well as the ability to make research ethical assessments&quot;.</div> <div> </div> <div>The research topic is inherently applied, and the assessment group mentions the good connection to working life outside the academy, and that most PhDs continue their career in the business sector after graduation. Professional skills are integrated into postgraduate education, for example through a career planning course.</div> <div> </div> <div>All doctoral students at Chalmers take GTS courses (Generic and Transferable Skills). These courses also receive a special mention when it comes to the doctoral student's continued career opportunities both within and outside the academy.</div> <div> </div> <h2 class="chalmersElement-H2">Doctoral student perspective</h2> <div>The report also examines the education from the doctoral student's perspective. The report describes that there is a doctoral student council and a doctoral student ombudsman as well as social activities for doctoral students.</div> <div> </div> <div>There is occupational health care, employee interviews, employee surveys and safety rounds for the Chalmers-employed doctoral students, and follow-up discussions on the doctoral studies for all doctoral students. Surveys show that the doctoral students generally experience a good work environment, but there are also indications that some experience high stress levels.</div> <div> </div> <div>The report group also writes in its report that a &quot;gender equality perspective is taken into account, communicated and anchored in the content, design and implementation of education&quot;. But that one had been helped by more concrete measures and aspects of gender equality linked to research tasks and the choice of research persons.</div> <div> </div> <div>Overall, it is considered that doctoral students are given the opportunity to take an active role in the work of developing the content and implementation of the education, and that the education ensures a good physical and psychosocial work environment.</div> <div> </div> <div>Göran Gustafsson, who is the director of studies for the graduate school product and production development, comments on the evaluation:</div> <div> </div> <div>- We are, of course, very pleased to have received the status of high quality from <span>​the Swedish higher education authority<span></span></span>. But we also see that there are things where we can improve ourselves and those areas we will naturally work harder with.</div> <div><br /></div> <div><h2 class="chalmersElement-H2">More information</h2></div> <div><a href=";sv.url=12.794d1f901621e65b329c27f">The full assessment report can be found at <span><span>​the Swedish higher education authority<span>'s website (only in Swedish).</span></span></span><br /></a></div> <div><br /><a href="">About the Graduate School Product and Production Development</a><span id="ms-rterangepaste-end" style="display:inline-block"><br /></span></div> <div><a href=""></a><br /></div>Wed, 24 Apr 2019 00:00:00 +0200 from Hannover Messe<p><b>​​Hannover fair, or Hannover Messe in German, is the time of the year when industry people gather in Hannover to see the latest news in industry technology and solutions, to meet like-minded, and to be inspired by the many talks hosted by the exhibitors.</b></p><div><img src="/SiteCollectionImages/Institutioner/IMS/Produktionssystem/IMG_5338.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:10px 25px" />For the visitor, the fair includes 25 halls full of technology, organized by themes such as the robot hall and research and education hall. </div> <div><br /></div> <div>This year’s partner country was Sweden and in the Co-lab Swedish Pavilion area over 100 Swedish companies, research institutes, academia, and start-ups had made joint forces to demonstrate what Sweden can offer. The Swedish Prince Carl-Philip visited the fair and can here be seen testing virtual reality in a factory based environment.</div> <div><br /></div> <div>From the impression, three aspects stood out for this year’s fair. </div> <div><br /></div> <h2 class="chalmersElement-H2">1.    Platforms </h2> Platforms is the new black and the big players are now entering the scene. At the fair, one could start in the corner of Hall 9 visiting the huge booth of Siemens with their IoT platform MindSphere, continuing further to hall 8 to see the Microsoft booth presenting Azure, and then ending up in the Amazon booth (more looking like a house than a traditional booth) in hall 7. Along this pathe were platforms and IT providers as long you could see. Another interesting aspect was their collaboration with users, populating their booth with companies demonstrating how they use their services. This also made it clear that there is no single provider in this game of winning the customer and they are more or less intertwined with each other, e.g., the Siemens MindSphere platform is relying on the AWS services. The presence from the platforms and IT providers states the transformation that is happening in the manufacturing area; it is becoming digitalized and connected.  <div><br /></div> <h2 class="chalmersElement-H2">2.    Man and machine interaction </h2> Hall 17 was the place for robots and it almost more felt like an amusement park – an amusement park of robots. Bosch had a stage where the robot and AGVs performed a show demonstrating how they can work together with each other and with humans, FANUC robot was lifting a car and UR presented an installation of robots moving synchronized. The most impressive show however, was the interaction between the Swedish artist Fredrik &quot;Benke&quot; Rydman and an ABB industrial robot. It was indeed a performance and showed the grace when human and machine move and work together. <br /><div><br /></div> <h2 class="chalmersElement-H2">3.    The atmosphere </h2> <div> Hannover Fair is the largest industry fair and after the first visit, it can be concluded that it really meets the expectations of providing the state of the art within in industry. The organization around the fair is impressive and it is not every day one has the possibility to walk between booths hosted by the largest technology providers for industry. It is for sure an opportunity to learn more and exchange ideas with its open atmosphere. Besides the interesting conversations between visitors and exhibitors, there is also an extensive agenda of presentations and seminars on themes like Smart manufacturing, 5G, AI and much more that are hosted by companies and organizations exhibiting at the fair. It is an ideal opportunity to learn more and gain new contacts. </div> <div><br /></div> <img src="/SiteCollectionImages/Institutioner/IMS/Produktionssystem/IMG_5206.JPG" alt="" style="margin:5px" /><br /><br /><br /><div>This sums up this year’s Hannover Fair where we had the opportunity to be part of the partner country area, arranged by Business Sweden. With the immense attention from media and visitors, we can hope it strengthens even more the focus on digitalization and smart manufacturing in Sweden. Looking forward to be part of the Hannover fair for many years to come. </div> <div><br /></div> <div>Text: <a href="/en/Staff/Pages/maja-barring.aspx">Maja Bärring<br /></a></div> <div>Images: Business Sweden</div> <div><br /></div> <div>Read more (in Swedish)<br /></div> <div><a href="/sv/institutioner/ims/nyheter/Sidor/Prinsen-testar-virtuell-svetsning.aspx">Prinsen testar virtuell svetsning</a><br /><a href="">Ny teknik skriver om fem trender på årets Hannovermässa</a> <br /></div> <div><br /></div>Mon, 15 Apr 2019 00:00:00 +0200 Quest for the Room of Requirement - Why Some Activity-based Flexible Offices Work While Others Do Not<p><b>​Maral Babapour Chafi, Design &amp; Human Factors​ IMS, defends her doctoral thesis.   Opponent: Assistant Professor Rianne Appel-Meulenbroek, Department of Architecture, Building and Planning at Eindhoven University of Technology, Netherlands.</b></p><strong>​Dissertation</strong><div><div>2019-04-26 13:00</div> <div>Virtual Development Laboratory (VDL), Chalmers Tvärgata 4 - 6, Göteborg</div></div> <div><br /> </div> <div><div><strong>Popular description</strong></div> <div>The ‘Room of Requirement’ is a hidden room in Harry Potter’s school that changes according to what people need and wish for. The room takes on many shapes containing different artefacts and is used for various purposes by single or multiple users; it can be everything from a hiding place to a meeting place. Similarly, Activity-based Flexible Offices (AFOs) provide a variety of workspaces for employees to choose from depending on their activities or preferences. In other words, the intention behind implementing AFOs is to make a ‘Room of Requirement’ that is equipped for people depending on what they need. The difference is that AFOs comprise rooms that are already equipped and do not necessarily change to suit whatever the employees need them to be. The work presented in this thesis examines why some AFOs work while others do not, based on five case studies. </div> <div>The findings show that AFOs are not inherently good or bad types of offices. Their design should match individual employees’ needs. First, the desk-sharing rule should be clearly specified and communicated. Second, the workspaces should be designed to match both the activities of the employees and their preferences for wellbeing and enjoyment. Third, collective instruments such as keyboards, mouses and office chairs should be designed for multiple users so that it is easier to switch workstations. Finally, the processes of moving to AFOs and making adjustments after the move are central. When employees do not have individual workstations, time and effort are required for collective customisation of AFOs to create joint ownership of the workspace.</div> <div><br /> </div> <div><span style="font-weight:700">Preface</span></div> <div>The term ‘Room of Requirement’ is borrowed from Harry Potter’s Hogwarts; a room in the school that changes according to what people need and wish for. To open the room, the users had to walk three times past an area with a hidden door, thinking of what they needed. The door to the room would then appear, and the room would be equipped with artefacts that the user needed. For example, if the user needed a place to study, walked past the area of the door three times thinking, &quot;I need a place to study&quot;, then the door would appear for the user to enter and find everything necessary for studying, such as books, desks, chairs, bookshelves and so on. The room took on a variety of shapes and was used for various purposes by single or multiple users; it was everything from a hiding place to a meeting place.</div> <div>Per definition, Activity-based Flexible Offices (AFOs) resemble the ‘Room of Requirement’, in that they provide a variety of workspaces for employees to choose from depending on their activities or preferences. In other words, the intention behind implementing AFOs is to make a ‘Room of Requirement’ that is equipped for people depending on what they need. The difference is that AFOs comprise rooms that are already equipped and do not necessarily change to conform to whatever the employees need them to be. Just like with the ‘Room of Requirements’, office employees are required to search through the various office areas in the quest for a workspace.</div> <div>Organisations that implement or contemplate implementing AFOs also go on a quest to find optimal real-estate solutions that can help them realise strategic goals such as increased collaboration, productivity and work environment satisfaction, as well as reduced occupancy costs and energy consumption. </div> <div>My quest in the course of this research has been to understand the consequences for employees’ work and work environment of the transition from traditional offices to AFOs, from having their own desks to sharing workspaces.  </div> <div>The work presented in this thesis examines how well implementations of AFOs succeed in providing rooms of requirement and meeting employees’ needs. </div></div> <div><br /> </div> <div><a href="/en/Staff/Pages/maral.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />More about Maral</a></div> <div><br /> </div>Fri, 12 Apr 2019 00:00:00 +0200 damage modeling of the machining process<p><b>Senad Razanica, Material and Computational Mechanics IMS, ​ defends his doctoral thesis on March 28.</b></p>​Opponent: Professor Jörn Mosler, Department of Mechanical Engineering, TU Dortmund, Germany<div><br /><div><strong>Doctoral thesis defence </strong><span style="background-color:initial"><strong>Senad Razanica</strong></span><br /></div> <div><span style="background-color:initial">2019-03-28 10:00</span><div>Virtual Development Laboratory (VDL)</div> <div><br /></div> <div><strong>Popular description</strong></div> <div>Machining is a collective term for various material removal processes comprising e.g. turning, milling and grinding. These are among the most common manufacturing processes for producing component and products used on a daily basis. As a matter of fact, machining is often applied as a final step in the production line in order to reach correct workpiece dimensions, surface finish and shape, with close tolerance accuracy thus accounting for approximately 15 % of the value of all mechanical components worldwide.     During a turning operation, the topic of the current thesis, a material portion called “chip” is removed from the workpiece using a cutting tool. A considerable waste of material, up to 10 % of the workpiece material might be removed in order to reach the final geometrical dimensions of the product. Desired product properties are achieved by controlling the processing parameters e.g. cutting forces, chip morphology, temperature and surface roughness which may be a difficult task.    Currently, the manufacturing industry addresses these challenges via simulation tools to increase the knowledge and optimization possibilities of the operation. Hence, in order to accurately simulate the machining processes, it is of utmost importance to accurately represent the behavior of the workpiece material, the interaction at the tool-chip interface and the local fracturing that occur during the chip formation. During this material removal process, regions of the workpiece material are subjected complex phenomena e.g. extremely large deformations, high strains and strain-rates together with elevated temperatures.     Thus, in the current thesis, a modeling framework is presented which accounts for both the material response, tool-chip interaction and fracture in the workpiece during machining. In particular main efforts have been put on the development of a model to represent the onset and evolution of damage followed by subsequent fracture. The modeling framework is implemented in a commercial software to simulate 2D machining (orthogonal cutting). The results obtained are validated against experimentally obtained chip formations, cutting forces and tool-chip contact lengths for machining of the difficult-to-cut material, Alloy 718. <br /></div> <div><br /></div> <div><a href=""><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />More about <span style="background-color:initial">Senad Razanica</span></a></div> <div><span style="background-color:initial"><br /></span></div> <div><br /></div></div></div>Tue, 19 Mar 2019 00:00:00 +0100 for large European test bed project in additive manufacturing<p><b>​Chalmers University of Technology has been entrusted with the project management of the largest EU investment so far in additive manufacturing. The 155 MSEK project is called Manuela (Additive Manufacturing Using Metal Pilot Line) and will lead to a new European test bed for researchers and companies to test product value chain in additive manufacturing, from start to end.</b></p>​<span style="background-color:initial">In October last year Lars Nyborg, coordinator, officially kicked-off the new project Manuela in Brussels. It is one of the biggest projects in additive manufacturing in Europe with a budget of € 15.5 million of which a large part of the funding ends up in Gothenburg.</span><div>“To be selected to coordinate a project of this size, it’s a real success,” says Lars Nyborg. “Thanks to our joined forces in the consortium, strong and competent organization at Chalmers, e.g. the Grants Office and CIT, and state-of the art research such as the Area of Advance Production and the Vinnova competence Centre for Additive Manufacturing – Metal, CAM2, we got this opportunity,” he concludes.</div> <div><br /></div> <div><strong>The ambition is</strong> to provide European industry with world class, reliable pilot line manufacturing service leveraging metal additive manufacturing products. </div> <div>This will be achieved by having the hardware solutions cost efficiently connected to the best possible competences and capacities across Europe to cover the full range of powder bed fusion technologies from medium to large scale laser powder bed fusion (LPBF) as well as electron-beam melting (EBM). Since, no single machine solutions can fit all necessary end user demands, this concept is expected to best possible solution from cost and agility point of view. </div> <div><br /></div> <div><strong>There are a lot of advantages</strong> of metal additive manufacturing, or 3D printing. It enables fabrication of advanced prototypes and functional components with increased design flexibility and reduced lead times. Some of the expected impact are:</div> <div><ul><li>Production time saving up to 60% over the full production chain</li> <li>Production speed will be increased by &gt; 30%</li> <li>Robustness of metal AM-based processes will be increased by more than 40%</li> <li>Time to market will be reduced by at least 30%</li></ul></div> <div>“The strength of the Manuela pilot line lays in the cooperation between the RTD partners enabling industrial partners and end users to request most advanced demonstrators by selecting from the various manufacturing routes and functionalities provided. This ensures that the end-users can expect optimum output with respect to costs, reliability and performance,” says professor Lars Nyborg.</div> <div><br /></div> <div><strong>The Manuela project</strong> will be in focus at the upcoming fair <a href="">Advanced Engineering 2019</a>, 27-28 March, Åbymässan, Gothenburg where Lars Nyborg, Chalmers, Department of Industrial and Materials Science, and Karl Lundahl, project leader, Chalmers Industriteknik will talk about the project.</div> <div><br /></div> <div><br /></div> <div><br /></div> <div><strong>ABOUT MANUELA</strong></div> <div>In the period of 4 years, MANUELA aims at deploying an open-access pilot line facility, covering the whole production sequence, to show full potential of metal AM for industrial AM production.</div> <div>Manuela consists of a consortium of industrial end user’s, suppliers, (material/powder, AM hardware, quality monitoring system, software, automation and post-AM treatment) as well as top research institutes in powderbed metal-AM, covering full range of AM technology chain for pilot line deployment. </div> <div>The deployed pilot line will be validated with use cases, covering wide span of applications including automotive, aerospace, energy and medical.</div> <div><div><a href="" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read more​</a>​</div></div> <div><br /></div> <div><strong>Coordinator</strong></div> <div>Chalmers University of Technology</div> <div><a href="">Lars Nyborg​</a>, Professor in Surface Engineering, Director of Chalmers Production Area of Advance, Division of Materials and Manufacture, Department of Industrial and Materials Science<span style="background-color:initial">         </span></div> <div><br /></div> <div><strong>Project time</strong></div> <div>4 years (Oct 2018-Sep 2022)</div> <div><br /></div> <div><strong>Partners</strong></div> <div>Chalmers University of Technology, CSEM, Friedrich-Alexander-Universität Erlangen-Nürnberg, RISE IVF, Cardiff University, Politecnico di Torino, Höganäs AB, Electro Optical Systems Finland Oy, ABB AB, OSAI Automation Systems, METAS, Siemens Industrial Turbomachinery AB, QIOPTIQ, O.E.B. SRL, RUAG Slip Rings SA, AMIRES SRO, Stiftelsen Chalmers Industriteknik, ENEL PRODUZIONE SPA, BIOMEDICAL ENGINEERING S.R.O</div> <div><br /></div> <div><strong>Funding</strong></div> <div><a href="">Horizon 2020, H2020-NMBP-FOF-2018</a></div> <div><br /></div> <div><br /></div>Thu, 07 Mar 2019 00:00:00 +0100 Approaches for achieving fully dense powder metallurgy steels<p><b>​Maheswaran Vattur Sundaram, Materials and manufacture IMS,  defends his doctoral thesis on March 29.</b></p>​<span style="background-color:initial">Opponent: Professor Mónica Campos, Universidad Carlos III de Madrid, Madrid, Spain</span><div><div>Supervisor: Eduard Hryha, IMS</div> <div>Examiner: Lars Nyborg, IMS</div></div> <div><br /></div> <div><span></span><span></span><div><span style="font-weight:700">Doctoral thesis defence </span><span style="background-color:initial"><span style="font-weight:700">Mahes</span></span><span style="background-color:initial"><span style="font-weight:700">waran </span></span><span style="background-color:initial"><span style="font-weight:700">Vattur </span></span><span style="background-color:initial"><span style="font-weight:700">Sundaram</span></span><span style="background-color:initial"><span style="font-weight:700"> </span></span></div> <div><span style="background-color:initial"><div>2019-03-29 10:00</div> <div>Virtual Development Laboratory (VDL)</div> <div>Chalmers Tvärgata 4C​</div> <div><br /></div> <div><strong>Popular description</strong></div> <div><div>From a historical perspective, utilising metal powder for making goods, monuments and jewellery were adopted as early as 3000 BCE by Egyptians; Inca’s used gold powder for making ornaments and the Iron pillar in Delhi, India, was made using reduced iron ore by hammering and it exists even today as a standing monument. However, powder metallurgy as an industrial process has grown rapidly only within the last century. Earlier development was focused on tungsten filaments as it was not possible to process tungsten through other methods due to the high melting point. Manufacturing steel parts or components from metal powders has grown in the beginning of the 20th century. Powder metallurgy, as a metal forming technique, utilises raw material in the form of powder particles, which are shaped into desired form using die-tools by pressing at high pressures. Once shaped, they are heated in a furnace to form metallic bonds, to provide the necessary strength to the component which is called sintering. Further, utilising metal powder for manufacturing conserves raw material, as it is consumed only for the desired shapes. Moreover, the energy required to make a steel component using press and sinter route is much lower than the other manufacturing processes such as casting, forging, and machining. This makes it very much attractive for using this process route for the mass production of components. </div> <div>However, the main drawback of this approach is the inability to reach full density, which limits the application of these materials. It is established that the properties of materials are a direct function of density; hence, increasing the density increases the properties and thus its potential applications. Therefore, the main focus of this study is to find the possible ways to reach full density in powder metallurgy steels, such that the process can be directly implemented for manufacturing. To do so, different processes utilising pressure, temperature, and combination of both were evaluated utilising low-alloyed steel powder. The challenges associated with powder processing at different stages were also addressed. From the results, it was demonstrated that full densification can be achieved through the proposed approaches based on the requirements. Hence, with this immense potential, these approaches provide opportunities for continuous progress of powder metallurgy in the future.</div></div> <div><br /></div> <div><div><a href=""><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />More about Maheswaran</a> </div> <div><br /></div> <div><a href=""><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Linkedin</a></div></div> <div><br /></div> <div><br /></div></span></div></div>Wed, 06 Mar 2019 11:00:00 +0100 Range and Supply becomes new strategic partner for Chalmers<p><b>A new five-year agreement marks the start of a closer collaboration between Ikea Range and Supply  and Chalmers, in research, competence development and innovation. One of the goals is increased sustainability, primarily through utilising opportunities in recycling, new materials and new technologies, including digitalisation.​</b></p>​<img src="/SiteCollectionImages/Areas%20of%20Advance/Production/300x384-ikeaflaggor.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px 15px;width:275px;height:354px" /><span style="background-color:initial">The agreement lays the groundwork for broad collaboration within research, which is now being built up gradually. Chalmers and Ikea Ikea both have the opportunity to utilise each other’s physical environments for research and innovation. Chalmers will also continue to provide training for Ikea co-workers and give them opportunities for closer contact with students.</span><div><br />“I am really happy about this and see many exciting opportunities. Not least, that we can mobilise research from various subject areas around the challenges Ikea is facing. This is a long-term and broad agreement, like those we have in place already with some 15 other companies. It clearly indicates that Ikea should be perceived as a company building on increasing engineering capabilities, with good career opportunities for students from many different programmes,” says Stefan Bengtsson, Chalmers President and CEO.</div> <div><br /></div> <div>From Chalmers' side, the Production Area of Advance acts as the host for the collaboration, and the contact for both Ikea and Chalmers. Managing the planet's resources through production, and utilising those resources in as long-sighted and smart a way as possible, is of great importance for Ikea.</div> <div>“We want to disconnect from the old saying that sustainability has to cost more. If we are really to turn society in the right direction, we must ensure that sustainable solutions are implemented and produced at low cost, so they can be available to many people,” says Jeanette Skjelmose, Deputy Managing Director of Ikea Range and Supply.</div> <div>Increased utilisation of big data, machine learning, and AI are areas that can be further discussed, as well as digital tools in product development. Other areas of interest are bio-based plastics and recycling of residual production material.</div> <div>“I really look forward to working with Chalmers. I think we can learn from each other and be able to explore and develop new opportunities within new materials and technologies. The possibility to improve the competence of our employees and attract new talents through our collaboration is also an expectation,” says Jeanette Skjelmose.​</div> <div></div> <div><div><em><br /></em></div> <div><em>Text: Christian Borg / Carina Schultz</em></div> <div><em>Photos: Carina Schultz</em></div></div> <div><br /></div> <div><img src="/SiteCollectionImages/Areas%20of%20Advance/Production/750x440-arbetsgrupp-ikea.jpg" alt="" style="margin:5px;width:680px;height:398px" /><br /><br /></div> <div><em>On site at Älmhult, from left: Ruth Woie Svensson, Anders Wennberg, Susanne Waidzunas (Ikea), Malin Cullin (Ikea), Ulrika Lundqvist, Stefan Bengtsson, Jeanette Skjelmose (Ikea), Lars Nyborg, Ulrika Rosling (Ikea) and Na Lin (Ikea).</em><br /></div> <div><br /></div> ​Wed, 06 Mar 2019 00:00:00 +0100 for international student projects<p><b>​Jason Moore, Associate Professor at the Department of Mechanical Engineering, Pennsylvania State University (Penn State), is currently performing a five-month sabbatical at Chalmers University to enhance Penn State’s collaborative teaching efforts with Chalmers University. ​</b></p><div>​<span style="background-color:initial">It all started with the joint capstone/bachelor thesis projects between Chalmers and Penn State four years ago. The vision was to enhance student’s global awareness focusing on the benefits and challenges of working internationally.  </span><br /></div> <div><br /><span style="background-color:initial"></span><div>&quot;Including the present fifth round of joint capstones, we have had 18 joint teams with in total 53 Chalmers students and 57 Penn State students&quot;, says Mikael Enelund. </div> <div><span style="background-color:initial">Mikael is Dean of Education - School of MATS (Mechanical engineering, mechatronics and automation, design, shipping and marine engineering) and started this joint programme together with Professor Martin Trethewey and Jason Moore of Penn State in the fall semester of 2014 and managed to have the first projects running in the spring semester of 2015. <br /></span></div> <div> </div> <div><img class="chalmersPosition-FloatLeft" alt="" /><br /><img src="/SiteCollectionImages/Institutioner/IMS/Övriga/PennState_190228_02_lowres.jpg" alt="" style="margin:5px" /><br /><em>Video conference between students at Chalmers and Penn State.</em><br /></div> <div><br /> </div> <div>The department of Mechanical Engineering at Penn State has a history of similar partnerships with universities in other countries, to offer students an international experience without the cost and time-commitment of travel. For the department of Industrial and Materials Science at Chalmers this is the first industry induced bachelor thesis projects where students collaborate with students at a foreign university. </div> <div><br /></div> <div>&quot;Our students have a tradition of working with real problems from the industry, which has been a very successful concept. The collaboration with Penn State adds another dimension, the global one, and makes them ready to work in an international context&quot;, says Rikard Söderberg, head of department at the Department of Industrial and Materials Science.​<br /></div> <div><br /></div> <div>The students benefit from learning how to work in a global environment where communication and organization are critical to success. In addition, the students learn how to solve a technically challenging industry sponsored project, which mirrors the type of work performed in industry.</div> <div><br />&quot;Indeed, students that choose these projects will have a more challenging time doing their bachelor thesis project but they will learn for life!&quot; says Lars Almefelt, Vice Head of Department with responsibility for education at undergraduate and masters level at the department of Industrial and Materials Science.</div> <div> </div> <div><div style="text-align:left;text-transform:none;text-indent:0px;letter-spacing:normal;font-size:14px;font-style:normal;font-variant:normal;font-weight:300;text-decoration:none;word-spacing:0px;white-space:normal;box-sizing:border-box;background-color:transparent">After developing this curriculum along with Mikael Enelund, Jason had the opportunity to performa sabbatical at Chalmers to further enhance this collaboration. Specifically, Jason is working to further refine the curriculum and teaching materials to maximize the learning objectives of the global collaborative course. In addition, Jason is working as a supervisor in Product Development Project class, with the goal of learning from and adding to Chalmers’ product design education curriculum.</div> <span style="text-align:left;text-transform:none;text-indent:0px;letter-spacing:normal;font-family:&quot;open sans&quot;, sans-serif;font-size:14px;font-style:normal;font-variant:normal;font-weight:300;text-decoration:none;word-spacing:0px;white-space:normal;float:none;background-color:transparent;display:inline !important"> </span><div style="text-align:left;text-transform:none;text-indent:0px;letter-spacing:normal;font-size:14px;font-style:normal;font-variant:normal;font-weight:300;text-decoration:none;word-spacing:0px;white-space:normal;box-sizing:border-box;background-color:transparent"> <br style="box-sizing:border-box" /></div> <span style="text-align:left;text-transform:none;text-indent:0px;letter-spacing:normal;font-family:&quot;open sans&quot;, sans-serif;font-size:14px;font-style:normal;font-variant:normal;font-weight:300;text-decoration:none;word-spacing:0px;white-space:normal;float:none;background-color:transparent;display:inline !important"> </span><div style="text-align:left;text-transform:none;text-indent:0px;letter-spacing:normal;font-size:14px;font-style:normal;font-variant:normal;font-weight:300;text-decoration:none;word-spacing:0px;white-space:normal;box-sizing:border-box;background-color:transparent">Ola Isaksson, Professor at the division of Product Development IMS, adds:</div> <span style="text-align:left;text-transform:none;text-indent:0px;letter-spacing:normal;font-family:&quot;open sans&quot;, sans-serif;font-size:14px;font-style:normal;font-variant:normal;font-weight:300;text-decoration:none;word-spacing:0px;white-space:normal;float:none;background-color:transparent;display:inline !important"> </span><div style="text-align:left;text-transform:none;text-indent:0px;letter-spacing:normal;font-size:14px;font-style:normal;font-variant:normal;font-weight:300;text-decoration:none;word-spacing:0px;white-space:normal;box-sizing:border-box;background-color:transparent">&quot;Exchanging experiences through real collaboration in project give a better understanding of also your own ways of working. The opportunity to exchange experiences is equally inspiring for students, supervisors and examiners. Jason’s visit give us all an excellent opportunity to develop the initiative further.&quot; <br /></div></div> <div> </div> <div> </div> <div><img src="/SiteCollectionImages/Institutioner/IMS/Övriga/Jason_lowres.jpg" alt="" style="margin:5px" /><br /><span><em>Jason Moore, Associate Professor at the Department of Mechanical Engineering, The Pennsylvania State University</em><span style="display:inline-block"><em>.</em></span></span><br /><br /> </div> <div><strong>Jason, you have also been involved in other collaborations, your students have been doing projects with other peer schools – what are the benefits from that?  </strong></div> <div>&quot;With the rise of communication technology companies all around the world we have started to rely more and more on global collaboration.  This provides numerous benefits for enhancing the outcome of a project; however, it comes with notable challenges.  This course teaches the students how to overcome these challenges.  Specifically, skills of high-level organization and communication are learned to overcome the challenges of working with partners on a global scale.  In addition, students learn how to appropriately interact with students of diverse backgrounds.  This work helps to prepare students for the global workforce.&quot;</div> <div> </div> <div><strong>The projects have been supplied mainly by manufacturing companies such as Volvo Group - do you plan to collaborate with MedTech companies regarding the “Global Student Engineering Team concept” to incorporate your research?  </strong></div> <div><span style="background-color:initial">&quot;We are always eager and grateful to find industry sponsors.  The industry partners make this class a success by providing real world technical challenges to the students and sponsor oversight of the student teams.  This allows the course to strongly reflect the type of work and challenges students will face in industry, says Jason.&quot;</span><br /></div> <div> </div> <div><strong>Being so involved in different teaching activities – you must have given the concept of teaching a lot of thoughts? What is your vision Jason?  </strong></div> <div>&quot;The vision is to continue to enhance the collaboration between Penn State and Chalmers University and work to increase both the number of projects and the number of global partner universities.  Thereby increasing the impact these projects have specifically at Penn State and Chalmers.  In addition, through publications and conference presentations we will work to spread knowledge about this global collaborative model’s success to other Universities around the world.  Thereby broadly impacting engineering education and helping numerous students.&quot;</div> <div> </div> <div><strong>Chalmers strives to deliver world-class education. The student should gain valuable and sought-after skills with the potential to work nationally and internationally. How does Chalmers education compare? </strong> </div> <div>&quot;Chalmers has an exceptional strong focus on providing students with a high quality education: providing students with the design skills that they need through engaging real world product design problems, says Jason.&quot;</div> <div> </div> <div><strong>What about your research Jason?</strong></div> <div>&quot;I direct the Precision Medical Instrument Design (PMID) Laboratory at Penn State University.  This laboratory focuses on two key areas; understanding medical device to body interaction and effectively applying robotics to improve medicine.</div> <div> </div> <div>The PMID laboratory explores the interaction between medical devices and soft tissue and bone inside the body.  By enhancing the understanding about medical device interaction improved medical devices and procedure techniques can be created.  For example, this work has examined the interaction forces between medical devices and the body including needles, scalpels, endoscopes, catheters and bone drills [1].</div> <div>The PMID laboratory also explores how robotics can be used to enhance medical procedures and medical training.  For example, work has focused on how robotic technology can be applied to enhance physical therapy by providing physicians with greater detail about patient exercise performance [2].  In addition, much work has focused on how robotics can be applied to enhance medical training: effectively teaching the dexterous skills needed to safely perform specific medical procedures [3].&quot;</div> <div> </div> <div><strong>Finally, Jason, sustainability is the current buzzword, “Chalmers for a sustainable future”, what does the word sustainability mean to you?</strong></div> <div>&quot;Through my teaching sustainability plays a major role in material design selection and in creating devices that can be very energy efficient.  Specifically, we have goals to teach students to critically think about sustainability and the broad impact of the devices they are designing.</div> <div>Through my research I see sustainability as having a major impact on medical products and medical education.  Learning how to have medical products be cost effective to minimize impact to the health care system. Learning how to sustainably translate medical knowledge to new doctors without putting patients at risk.&quot;</div> <div><br /> </div> <div><div><strong>More about </strong></div> <div><a href=""><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Jason Moore</a></div> <div><a href="/en/staff/Pages/mikael-enelund.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />Mikael Enelund</a></div></div> <div><a href=""><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Penn State University​</a></div> <div><a href="/en/departments/ims/Pages/default.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />Industrial and Materials Science​</a></div> <div><a href="/en/education/Pages/default.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />Chalmers Education</a></div> <div><br /></div> <div><br /> </div> <div><div><strong>Links to a few of the PennState capstone projects: </strong></div> <div><a href=";doSearch=true&amp;query=Penn+State&amp;submit01=S%C3%B6k"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Link 1</a> <span style="background-color:initial"></span></div> <div><a href=";doSearch=true&amp;query=Pennsylvania+&amp;submit01=S%C3%B6k"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Link 2​</a><span style="background-color:initial"> </span><br /></div> <div><br /> </div> <div>​<br /></div></div> <div><div>-<span style="white-space:pre"> </span>[1] Barnett AC, Lee YS, Moore JZ. Fracture mechanics model of needle cutting tissue. J Manuf Sci Eng Trans ASME. 2016;138:011005-1 to 011005-8.</div> <div>-<span style="white-space:pre"> </span>[2] Homich AJ, Doerzbacher MA, Tschantz EL, Piazza SJ, Hills EC, Moore JZ. Minimizing human tracking error for robotic rehabilitation device. J Med Devices. 2015;9:041003-1 to 041003-8.</div> <div>-<span style="white-space:pre"> </span>[3] Pepley DF, Gordon AB, Yovanoff MA, Mirkin KA, Miller SR, Han DC, Moore JZ. Training surgical residents with a haptic robotic central venous catheterization simulator. J Surg Educ. 2017;74(6):1066-1073.</div></div></div> <div><br />Text: Kate Larsson</div> <div>Photo: Marcus Folino</div> <div><br /> </div> ​​​​​Wed, 06 Mar 2019 00:00:00 +0100 is investing in Gothenburg for future manufacturing and innovation<p><b>​Gothenburg is one of the five nodes within the new European network for innovation and education in future Manufacturing Industries. EIT - The European Institute of Innovation &amp; Technology decided on December 5, 2018, to invest 450 million Euro to create the EIT Manufacturing Programme. EIT has chosen the consortium where Chalmers, AB Volvo, Sandvik, and RISE Research Institute collaborate with 46 other EU partners.</b></p><div><span style="background-color:initial">The aim of EIT Manufacturing is to raise European manufacturing industry to such a high level that the European Union can meet the fierce global competition for customers and jobs. EIT Manufacturing will create powerful innovation environments, advanced education and massive education efforts.</span><br /></div> <div><br /></div> <div>&quot;It is incredibly important for Swedish and European industry to be able to compete on a global market. Chalmers is proud to be hosting the North-European node of this great investment in industrial innovation, education, and training. EIT Manufacturing will strengthen Chalmers’ ability to create impact towards a sustainable society,&quot; says Stefan Bengtsson, <span style="text-align:center">President and CEO</span> of Chalmers.</div> <div><br /></div> <div>The headquarters of EIT Manufacturing is located in Paris. The five European innovation community nodes of the programme will be built in Gothenburg, Vienna, Milan, Bilbao and Darmstadt.</div> <div><br /></div> <div>&quot;The competition was tough. But our consortium could clearly demonstrate how industries, universities, and institutes will collaborate across Europe to create entrepreneurship, new businesses and jobs” says Johan Stahre, Professor at Chalmers, who coordinated the North-European Group in the winning consortium.</div> <div><br /></div> <div><br /></div> <div><strong>EIT Manufacturing</strong></div> <div>EIT Manufacturing is a seven-year initiative, starting in January 2019. The programme will be fully operational in 2020. Including the parties' co-funding, the investment will total more than two billion Euro. The strategic goals of EIT Manufacturing include life-long learning; engagement of students in manufacturing, efficient innovation systems, extensive digitalization, focus on individual customer demand, making industry manufacturing and products safer, environmentally sustainability, and healthier manufacturing industries in a broad span of aspects. Resources for innovation, education, and training will gradually be become available to all interested companies, universities, and institutes.</div> <div><span style="background-color:initial">Read more: </span><a href="">Leading Manufacturing Innovation is made by Europe​</a></div> <div><a href="" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Press release</a></div> <div><br /></div> <div><strong>
Contact:</strong></div> <div><a href="">Johan Stahre</a>, Professor, Chalmers, Interim Director of Colocation Centre North, +46 31 772 12 88</div> <div><a href="">Klaus Beetz</a>, chairman of EIT manufacturing</div> <div><br /></div> <div><strong>EIT, European Institute of Innovation &amp; Technology</strong></div> <div>EIT is an independent organization in the EU, headquartered in Budapest, launched in 2008 to strengthen innovation and entrepreneurship across Europe. Since then, the EIT has gradually financed and launched networks of universities, research labs and companies focused on climate, digitization, food, health, energy, raw materials, manufacturing and urban mobility.</div> <div><a href="" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read more about EIT</a></div>Thu, 21 Feb 2019 00:00:00 +0100 failure of unidirectional NCF composites<p><b>​Dennis Wilhelmsson, Material and Computational Mechanics​ IMS, defends his doctoral thesis on March 15 2019.</b></p>​<span style="background-color:initial"> Opponent: Prof. Michael Wisnom, University of Bristol, UK</span><div>Examiner: Prof. Ragnar Larsson IMS</div> <div>Supervisor: Prof. Leif Asp IMS</div> <div><br /></div> <div>See popular description below. </div> <div><br /></div> <div><br /></div> <div><strong>Dissertation Dennis Wilhelmsson</strong></div> <div>2019-03-15 10:00</div> <div>VDL, Chalmers Tvärgata 4C</div> <div><br /></div> <div><div><strong>Prediction of compressive strength in aero-engine composite parts</strong></div> <div>With more people flying every year, new technologies are needed to reduce our impact on the environment. The amount of energy (fuel) needed for flight is related to the mass of the aircraft. Lighter aircraft means less fuel consumption and thus a lower impact on the environment. One option is to reduce the energy in flight by lighter composite materials such as carbon fibre reinforced polymers (CFRP). Compared to metals, CFRP has a superior strength-to-weight ratio due to the very strong carbon fibres and low density.</div> <div>The most common type of CFRP in aircraft is very expensive and the current trend is to replace these with textile based composites to reduce costs. The textile composites consist of carbon fibres, equally strong to the ones in the expensive material. However, the manufacturing principles are different, which cause the fibres to be wavy. Waviness of the fibres have a negative effect on material properties such as strength. The reduction in strength when the material is loaded in compression is the most critical case. In this project we address this problem such that reliable dimensioning methods for this type of materials can be developed for use the aerospace industry.</div> <div>The reason that compressive strength is particularly affected by the fibre waviness is related to the interaction between the matrix material (the epoxy polymer) and the carbon fibre. The carbon fibres provide the strength of the composite material and it is the role of the matrix material to distribute the load between fibres. In compression, the matrix material must support the fibres or else they will collapse. This collapse is very sensitive to the orientation of the fibres with respect to the direction of the compressive load.</div> <div>Existing models for strength prediction consider the fibre waviness in a way which is too simple. We have developed a method to measure the fibre waviness in a very accurate and detailed manner. Based on this information, we have gained fundamental knowledge on compressive failure. We have further developed new models that are able to consider the small variations in fibre orientations and the large impact they have on compressive strength</div></div> <div><br /></div> <div><a href=""><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />More about Dennis Wilhelmsson </a></div> <div><a href=""><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />LinkedIn </a></div> <div><br /></div> <div><br /></div>Mon, 18 Feb 2019 12:00:00 +0100 framework for hot-spot identification and verification in automotive composite structures<p><b>Henrik Molker, Material and Computational Mechanics IMS, presents his doctoral thesis on March 1st, 2019 ​Opponent: Prof. Raimund Rolfes, Leibniz Universität Hannover, TysklandExaminer: Prof. Ragnar Larsson IMS​ Supervisor: Prof. Leif Asp, IMS​ For more information, see popular description and link below.​​</b></p><strong>Dissertation Henrik Molker</strong><div><div>2019-03-01 10:00</div> <div>VDL, Chalmers Tvärgata 4C</div> <div><br /></div> <div><strong>Popular description</strong></div> <div><div>The automotive industry needs to reduce energy consumption to decrease environmental impact. This can be achieved by reducing the weight of cars, which would consequently reduce the energy consumption and emission of greenhouse gases. A promising way to lose weight of automotive primary structures is to introduce carbon fibre composites, as they show outstanding specific properties. However, design of cars are made in virtual environments while composite designs today rely on methods and guidelines that require large amounts of testing. To be able to introduce composite materials in primary structures, the industry needs an efficient design methodology that can be used in virtual development processes. In addition to this, the automotive industry needs new material systems, and production methods to be able to produce composite structures in high volume at a profitable cost.</div> <div><br /></div> <div>In this thesis, a design methodology for composite structures within the automotive industry is proposed. A methodology that combines numerical models at multiple scales to first find potential hot-spots in global models and then assess only these using high fidelity models. The important part is to ensure that all potential failure modes can be captured both in the global model as well as in the local models. </div> <div><br /></div> <div>The first step in the methodology is to find accurate failure modes for material systems that are likely to be used within automotive industry. A possible material system for the automotive industry is Non Crimp-Fabric (NCF) reinforced composite materials. Compared to Uni-Directional (UD) reinforced composite materials, NCF composite materials have been found not to be transversely isotropic but orthotropic. This is valid for both stiffness and strength. Current state-of-the-art set of failure initiation criteria are based on the assumption of transverse isotropy. In this thesis, a set of criteria for assessing failure initiation of NCF reinforced composite materials are proposed. The failure criteria are compared and verified against data from literature and numerical models. The set of criteria have also been implemented into a commercial finite element code and verified against physical experiments. </div></div> <div></div> <div><br /></div> <div><a href=""><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read more </a></div> <div><div><a href=""><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />LinkedIn</a><br /></div> <div><a href=""><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Researchgate</a></div></div></div>Fri, 01 Feb 2019 10:00:00 +0100