@inproceedings{15987, author = {{Lauter, Christian and Frantz, Meike and Kohler, J. P. and Tröster, Thomas}}, location = {{Venice, Italy}}, title = {{{Crash tests of hybrid structures consisting of sheet metal and local CFRP reinforcements}}}, year = {{2012}}, } @inproceedings{15988, author = {{Lauter, Christian and Sarrazin, M. and Tröster, Thomas}}, location = {{Porto, Portugal}}, title = {{{Joining technologies for hybrid materials consisting of sheet metal and carbon fibre reinforced plastics}}}, year = {{2012}}, } @article{15989, author = {{Ickert, Leif and Thomas, Dieter and Tröster, Thomas and Eckstein, Lutz}}, issn = {{2192-7863}}, journal = {{FAT-Schriftenreihe 244}}, number = {{244}}, publisher = {{Forschungsvereinigung Automobiltechnik e.V.}}, title = {{{Beitrag zum Fortschritt im Automobilleichtbau durch belastungsgerechte Gestaltung und innovative Lösungen für lokale Verstärkungen von Fahrzeugstrukturen in Mischbauweise}}}, year = {{2012}}, } @inproceedings{16004, author = {{Lauter, Christian and Siewers, Bernd and Zanft, B. and Tröster, Thomas}}, location = {{Porto }}, title = {{{Crash worthiness of hybrid pillar structures consisting of sheet metal and local CFRP reinforcements}}}, year = {{2012}}, } @inproceedings{16007, author = {{Thöne, M. and Leuders, S. and Riemer, A. and Tröster, Thomas and Richard, H. A.}}, location = {{Austin, Texas, USA}}, title = {{{Influence of heat-treatment on Selective Laser Melting products - e.g. Ti6Al4V}}}, year = {{2012}}, } @article{16008, author = {{Riemer, A. and Leuders, S. and Tröster, Thomas and Richard, H. A.}}, journal = {{DVM-Bericht 139, Werkstoffe und Fügeverfahren - Neue Herausforderungen für die Betriebsfestigkeit}}, publisher = {{Deutscher Verband für Materialforschung und -prüfung e.V.}}, title = {{{Untersuchung zyklisch belasteter SLM-Bauteile aus der Titan-Aluminium-Legierung TiAl6V4}}}, year = {{2012}}, } @inproceedings{16009, author = {{Leuders, S. and Riemer, A. and Tröster, Thomas and Richard, H. A.}}, location = {{Kassel}}, title = {{{Characterization and Comparison of Mechanical Properties of SLM Materials with Regard to Process Cycle Time Improvement}}}, year = {{2012}}, } @article{16015, author = {{Leuders, S. and Thöne, M. and Riemer, A. and Niendorf, T. and Tröster, Thomas and Richard, H.A. and Maier, H.J.}}, issn = {{0142-1123}}, journal = {{International Journal of Fatigue}}, pages = {{300--307}}, title = {{{On the mechanical behaviour of titanium alloy TiAl6V4 manufactured by selective laser melting: Fatigue resistance and crack growth performance}}}, doi = {{10.1016/j.ijfatigue.2012.11.011}}, year = {{2012}}, } @article{15984, abstract = {{A new and promising approach to the reduction of greenhouse gas emissions is the use of improved lightweight constructions based on multi-material systems comprising sheet metal with local carbon fibre reinforced plastic (CFRP) reinforcements. The CFRP is used to reinforce highly stressed areas and can be aligned to specific load cases. The locally restricted application of CFRP means that the material costs can be effectively reduced by comparison to parts made entirely of CFRP on account of the expensive production process requiring the use of an autoclave. These parts are thus only used in high-priced products. The production of hybrid CFRP steel structures in a mass production process calls for an efficient production technology. Current research work within the scope of a collaborative research project running at the University of Paderborn is concentrating on the development of manufacturing processes for the efficient production of automotive structural components made up of sheet metal blanks with local CFRP patches. The project is focusing especially on basic research into the production of industrial components. The aim of the investigation is to create an efficient and controlled process for producing CFRP reinforced steel structures from semi-finished hybrid steel-CFRP material. This includes tool concepts and an appropriate process design to permit short process times. The basis of an efficient process design is an in-depth knowledge of the material behaviour, and hence a thorough characterisation was performed. Material parameters were determined for both simulation and forming. For this, monotonic tensile, shear and bending tests were conducted using both uncured prepregs and cured CFRP specimens. To achieve an accurate simulation of the forming process, a special material model for carbon fibre prepregs has been developed which also includes the anisotropic material behaviour resulting from fibre orientation, the viscoelastic behaviour caused by the matrix and the hardening effects that prevail during curing. Recent results show good qualitative agreement and will be presented in this paper. In order to control the properties of the hybrid components, four different tool concepts for the prepreg press technology have been developed and tested. The concepts are presented and the results of experimental investigations are discussed in this paper.}}, author = {{Schmidt, Hans Christian and Damerow, Ulf and Lauter, Christian and Gorny, Bernhard and Hankeln, Frederik and Homberg, Werner and Tröster, Thomas and Maier, Hans Jürgen and Mahnken, Rolf}}, issn = {{1662-9795}}, journal = {{Key Engineering Materials}}, pages = {{295--300}}, title = {{{Manufacturing Processes for Combined Forming of Multi-Material Structures Consisting of Sheet Metal and Local CFRP Reinforcements}}}, doi = {{10.4028/www.scientific.net/kem.504-506.295}}, year = {{2012}}, } @inproceedings{15986, author = {{Gorny, B. and Hankeln, Frederik and Lauter, Christian and Schmidt, H. C. and Damerow, U. and Mahnken, Rolf and Maier, H. J. and Tröster, Thomas and Homberg, Werner}}, location = {{Turin, Italy}}, title = {{{Simulation and manufacturing of deep drawn parts reinforced by carbon fibre prepregs}}}, year = {{2012}}, } @article{16010, author = {{Lauter, Christian and Tröster, Thomas and Brandis, Rinje and Gausemeier, Jürgen}}, issn = {{1865-4819}}, journal = {{Lightweight Design}}, pages = {{50--56}}, title = {{{Methodik für die Produktentstehung hybrider Leichtbaustrukturen}}}, doi = {{10.1365/s35725-013-0137-4}}, volume = {{5}}, year = {{2012}}, } @techreport{16012, author = {{Tröster, Thomas and Marten, Thorsten and Adelbert, Stefan and Kadim, Abdel}}, isbn = {{978-3-942541-18-3 }}, publisher = {{Abschlussberichte Forschungsvereinigung Stahlanwendung e.V., Verlag und Vertriebsgesellschaft mbH}}, title = {{{P 850 – Wirbelbetterwärmung von Platinen für das Presshärten}}}, year = {{2012}}, } @article{15969, author = {{Lauter, Christian and Sarrazin, M. and Tröster, Thomas}}, journal = {{Adhäsion – Kleben und Dichten}}, pages = {{39--43}}, publisher = {{Springer Vieweg}}, title = {{{Multimaterialsysteme höchstfest verbunden}}}, volume = {{3/2011}}, year = {{2011}}, } @inproceedings{15971, author = {{Frantz, Meike and Stübbe, O. and Lauter, Christian and Schrange, J. and Tröster, Thomas}}, location = {{Köln}}, title = {{{Mechatronisches System zur Bestimmung der Restlebensdauer von Faserverbund-Leichtbaustrukturen am Beispiel einer Lauffeder}}}, year = {{2011}}, } @inproceedings{15972, author = {{Thomas, D. and Block, H. and Tröster, Thomas and Krogmeier, J.}}, location = {{Köln}}, title = {{{Herstellung von belastungsgerechten Strukturbauteilen mittels partieller induktiver Härtung}}}, year = {{2011}}, } @article{15974, author = {{Marten, Thorsten and Lauter, Christian and Tröster, Thomas}}, journal = {{Ingenieurspiegel}}, pages = {{67--69}}, publisher = {{Public Verlagsgesellschaft und Anzeigenagentur}}, title = {{{Automobilleichtbau durch höchstfeste Multimaterialsysteme}}}, volume = {{2/2011}}, year = {{2011}}, } @article{15975, author = {{Lauter, Christian and Thomas, D. and Frantz, Meike and Niewel, J. and Tröster, Thomas}}, journal = {{Werkstoffe in der Fertigung – Die Fachzeitschrift für technische Führungskräfte}}, pages = {{6--7}}, publisher = {{HW-Verlag}}, title = {{{Belastungsangepasste Strukturbauteile für Automobile aus höchstfesten Werkstoffen und Hybridwerkstoffen}}}, volume = {{2}}, year = {{2011}}, } @article{15980, author = {{Lauter, Christian and Frantz, Meike and Siewers, Bernd and Tröster, Thomas}}, journal = {{JEC Composites Magazine}}, pages = {{35--37}}, publisher = {{JEC Composites}}, title = {{{Hybrid structures for tailored structural automotive components}}}, volume = {{69}}, year = {{2011}}, } @inproceedings{15990, author = {{Thomas, D. and Block, H. and Tröster, Thomas}}, location = {{Salzburg}}, title = {{{Production of load-adapted lightweight designs by partial hardening}}}, year = {{2011}}, } @article{15992, author = {{Gorny, B. and Niendorf, T. and Lackmann, J. and Thoene, M. and Tröster, Thomas and Maier, H.J.}}, issn = {{0921-5093}}, journal = {{Materials Science and Engineering: A}}, number = {{27}}, pages = {{7962--7967}}, title = {{{In situ characterization of the deformation and failure behavior of non-stochastic porous structures processed by selective laser melting}}}, doi = {{10.1016/j.msea.2011.07.026}}, volume = {{528}}, year = {{2011}}, }