Veröffentlichungen und Vorträge
Use of Specific Models for Creep, Plasticity and Fracture in Forming and Crashworthiness Simulation via UCREEP and VUMAT. Deutsche SIMULIA-Konferenz, 12.-13. November 2015, Aachen
Simulation of the manufacturing process of self-piercing rivets with LS-DYNA with focus on failure prediction for sheets and rivet. 10th European LS-DYNA Conference, Würzburg, Germany
Modelling Failure of Short Fiber Reinforced Thermoplastics with Respect to Local Degree of Fiber Orientation. crashMAT 2015, 7. Freiburger Workshop zum Werkstoff- und Strukturverhalten bei Crashvorgängen 21-22 April 2015, Fraunhofer EMI, Freiburg
Crashworthiness simulation of high pressure die cast aluminum alloys and aluminum extrusions with MF GenYld + CrachFEM. Automotive CAE Grand Challenge 2015 31 March – 1 April, 2015 Hanau, Germany
New features in material model MF GenYld + CrachFEM for sheet metal forming simulation. Automotive CAE Grand Challenge 2015 31 March – 1 April, 2015 Hanau, Germany
Verbesserte Abbildung von Leichtbauwerkstoffen mit einem modularen Materialmodell. Technisch- wissenschaftliche Seminarreihe Hochleistungsstrukturen im Leichtbau, Hochschule München, 12. November 2014
Failure Prediction of Quenched Boron Steels in Crashworthiness Simulation. International CAE Conference 2014, Pacengo del Garda, Verona, 27-28 October 2014
CrachFEM – A Comprehensive Approach for the Numerical Prediction of Instability And Fracture in Sheet Metal Forming Operations. FLC Conference, 6-7 November 2014, IVP, ETH Zurich, Switzerland
Failure prediction for non-reinforced and short fiber reinforced polymers. 13th LS-Dyna Forum 2014, Bamberg, 6-8 October 2014
CrachFEM – A comprehensive approach for the prediction of failure in metallic materials. 11th World Congress on Computational Mechanics (WCCM XI) and 5th European Conference on Computational Mechanics (ECCM V), July 20-25, 2014, Barcelona, Spain
Relaxation Forming of Double Curved Fuselage Panels – Assessment of Formability And Optimization of Process Parameters With Numerical Analysis. 7th Forming Technology Forum Warm and Hot Forming, September 15-16, 2014 Enschede, the Netherlands
Modeling Failure for Nonlinear Strain Paths With CrachFEM. Numisheet 2014, Melbourne, Australia
Durchgängiges Materialmodell für Fertigungs- und Crashsimulation von Metallen und Kunststoffen. VDI-Konferenz, Simvec Spezial, Simulation des Werkstoffverhaltens für automobile Anwendungen, Baden-Baden, 10.-11. Dezember 2013
CrachFEM – A Comprehensive Approach for the Prediction of Sheet Failure in Multi-Step Forming and Subsequent Forming and Crash Simulations. Forming Technology Forum 2013, 19-20 September, 2013, Herrsching, Germany
Influence of Discretisation on Stiffness and Failure Prediction in Crashworthiness Simulation of Automotive High Pressure Die Cast Components. 9th European LS-DYNA Users’ Conference, Manchester, 2-4 June 2013
From sheet metal to material input for FEA – a systematic approach. Automotive CAE Grand Challenge 2013, 10-11 April 2013, Hanau, Germany
Integrative Simulation von faserverstärkten Kunststoffen unter Crash-Beanspruchung. VDI-Konferenz, Kunststoffe im Automobilbau – Plastics in Automotive Engineering, Mannheim, 13.-14. März 2013
Advanced modelling of metals and thermoplastics for crash applications under consideration of the process history. Enginsoft International Conference 2012, 22-23 October, Lazise, Italy
Improved material models for metals and plastics in crash simulation – a prerequisite for the virtual validation of novel lightweight design concepts. „Vehicle Property Validation 2012“, Automotive Circle International, Bad Nauheim, 19-20 June 2012
Prediction of plane stress fracture toughness for aluminium sheet materials with numerical methods. ESIS-Workshop on Computational and Experimental Failure Mechanics, 14-15 June 2012, BAM Berlin, Germany
Contribution of improved material models to the virtual assessment of the process robustness of sheet forming processes. Forming Technology Forum 2011, 17-18 May 2011, IVP, ETH Zurich, Switzerland
Advanced Modeling of Fiber Reinforced Thermoplastics for Crash Simulation under Consideration of the Injection Molding Process. CrashMat Freiburg, Fraunhofer EMI, 24.-25. April 2012, Freiburg, Germany
Beitrag verbesserter Materialmodelle zur numerischen Auslegung von Leichtbaukomponenten – A Contribution of Advanced Material Models for Numerical Simulation of Lightweight Components. 7th Nordmetall Colloquium, 18-19 April 2012, Wasserschloss Klaffenbach
Beitrag verbesserter Materialmodelle zur numerischen Auslegung von Leichtbaukomponenten – A Contribution of Advanced Material Models for Numerical Simulation of Lightweight Components. La Metallurgia Italiana – n. 11-12/2011
Beitrag verbesserter Materialmodelle zur numerischen Auslegung von Leichtbaukomponenten – A Contribution of Advanced Material Models for Numerical Simulation of Lightweight Components. VDI-Fachkonferenz „Simulation im automobilen Leichtbau“, Baden-Baden, 22. und 23. November 2011
A new method for CrachFEM damage parameter calculation and transfer from Autoform to LS-Dyna. 8th European LS-DYNA Users Conference, 23 – 24 May 2011, Strasbourg
Contribution of Material Model MF GenYld + CrachFEM to the Virtual Assessment of Sheet Forming Processes. automotive CAE Grand Challenge 2011, 19 – 20 March 2011, Hanau, Germany
Modelling Short-Fiber Reinforced Polymers with Material Model MF GenYld + CrachFEM. 4A Engineering Technologietage, 3. + 4. März 2011, Schladming, Austria
Advanced prediction of material failure in metal forming and crash simulation with material model MF GenYld + CrachFEM. Enginsoft International Conference 2010, 21 October, Fiera Montichiari, Italy
Semi-automated bearing strength prediction of aerospace materials using Abaqus and Python scripting. Deutsche SIMULIA-Konferenz 2010, Heidelberg, 20.-21. September 2010
Forming simulation of aluminum car body sheet with different yield models and comparison with experiments. IDDRG 2010, Graz, 31 May 31 – 2 June
Beschreibung der isotropen, isotrop-kinematischen und anisotropen Verfestigung von Blechwerkstoffen – experimentelle Aufnahme und numerische Modellierung. 13. Workshop Simulation in der Umformtechnik, Universität Stuttgart, 19. März 2010
Modelling Non-Reinforced and Fiber-Reinforced Polymers with Material Model MF GenYld + CrachFEM. Automotive CAE Grand Challenge 2010„ Hanau, 30-31 March 2010
Crash Simulation with Material Model MF GenYld + CrachFEM based on Results of Process Simulation. Automotive CAE Grand Challenge 2010“ Hanau, 30-31 March 2010
Weiterentwickeltes Materialmodell zur Bewertung des Crashverhaltens von Mg-Extrusionsprofilen. Nordmetall-Kolloquium 2009 am 2.12. und 3.12.2009 in Adorf bei Chemnitz (Organisation: Prof. Dr.-Ing. L.W. Meyer)
Advanced Modeling of Metallic Materials in Metal Forming and Crash with LS-Dyna and Modular User Material MF GenYld + CrachFEM. ANSYS Conference & 27. CADFEM Users’ Meeting Leipzig, 18-20 November 2009
Crashworthiness Simulation of Mg Die Casting Parts Including Local Properties from Process Simulation. 8th International Conference on Magnesium Alloys and their Applications, Weimar, 26-29 October 2009
Current developments in modelling material failure of metallic structures. EUCOMAS 2009, 1-2 July 2009, Augsburg, Germany
A Systematic Approach to Model Metals, Compact Polymers and Structural Foams in Crash Simulations with a Modular User Material. 7th European LS-DYNA Conference, 14-15 May 2009, Salzburg
Models for Isotropic-Kinematic Hardening and Anisotropic Hardening in Material Model MF Genyld + Crachfem. Forming Technology Forum 2009, 5-6 May 2009, IVP, ETH Zurich, Switzerland
Vision and Current Development of an FEA-Code Independent Material Model for the Process Chain of Manufacturing and Crash Simulation. Automotive CAE Grand Challenge 2009, 2-3 March 2009, Hanau
Modellierung von orthotroper Plastizität und Versagen bei Dellen in integralen Flugzeughautfeldern mit dem User-Materialmodell MF GenYld + CrachFEM. 20. Deutschsprachige Abaqus-Benutzerkonferenz, 22.-23. September 2008, Bad Homburg
Advanced Yield Loci and Anisotropic Hardening in the Material Model MF GenYld + CrachFEM. Numisheet 2008, September 1-5, Interlaken, Switzerland
Formability Prediction of Aluminium Sheet for Car Body Panels. International Deep Drawing Research Group, IDDRG 2008 International Conference, 16-18 June 2008, Olofström, Sweden
An approach to model sheet failure after onset of localized necking in industrial high-strength steel stamping and crash simulations. 2008 SAE World Congress. April 14-17, 2008, Cobo Center, Detroit, Michigan, USA
Consistent Modelling of Plasticity and Failure in the Process Chain of Deep Drawing and Crash with User Material Model MF-GenYld + CrachFEM for LS-Dyna. 6th German LS-Dyna Forum 2007 October 11 – 12, 2007, Frankenthal, Germany
Current status on determining material characteristics for the design of sheet metal forming operations. 8th European Conference for Forming Automotive Aluminium and Steel materials, 27-28 September 2007, Bad Nauheim, Germany
Failure prediction of Boron steels in crash. 2007 SAE World Congress. April 16-19, 2007, Cobo Center, Detroit, Michigan, USA
CrachFEM – A Comprehensive Approach for the Prediction of Sheet Metal Failure. NUMIFORM ’07, Materials Processing and Design: Modeling, Simulation and Applications, 18 – 21 June 2007
Formability Prediction of Aluminum Sheet in Automotive Applications. NUMIFORM ’07, Materials Processing and Design: Modeling, Simulation and Applications, 18-21 June 2007
Modelling of Non-Reinforced Polymeric Material Behaviour in the Explicit FEM Method for Crash Simulation. Kunststoffe+Simulation 13. – 14. Juni 2007, Fellbach/Stuttgart
MF GenYld + CrachFEM – A Modular Material and Failure Model for Structural Materials to be Used in Metal Forming and Crash Simulations. NAFEMS Conference „Material Modeling“, December 5 – 6, 2006, Niedernhausen near Wiesbaden, Germany
Numerical Analysis of the Balloon Dilatation Process Using the Explicit Finite Element Method for the Optimization of a Stent Geometry. LS-Dyna Forum 2006, 12.-13. Oktober 2005, Ulm
Novel Learning Tool to predict Mechanical Stent Performance for Next Generation Materials Beyond Stainless Steel. World Congress of Biomechanics WCBM, Jul 29 – Aug 4, 2006, Munich, Germany
Numerical Prediction of FLC with the Program Crach. FLC Zürich, March 15 – 16, 2006, IVP, Eidgenössische Technische Hochschule Zürich, Switzerland
Systematische Aufbereitung von Werkstoffdaten für die Blechumformsimulation. LS-Dyna Forum 2005, 20.-21. Oktober 2005, Bamberg
Applications of Phenomenological Failure Models in Automotive Crash Simulations. VIII International Conference on Computational Plasticity COMPLAS, Oñate E.; Owen D.R.J. (Eds.) – CIMNE, Barcelona, 2005
Material Selection for an Ultra High Strength Steel Component Based on the Failure Criteria of CrachFEM. 6th Numisheet Conference 2005, „On the Cutting Edge of Technology“ August 15-19, 2005, Detrit, Michigan, U.S.A.
Verbesserte Materialmodelle für die virtuelle Auslegung von Leichtbaustrukturen im Automobilbau bei Crashbelastung. DVM-Tag 2005: Dünnwandige Strukturbauteile, 27.-29. April 2005, Berlin
Verbesserte Plastizitäts- und Versagensmodelle in der Umformsimulation. NeMa-Tagung „Numerische Simulation – Verarbeitungsprozesse und prozessgerechte Bauteilgestaltung, Fokus Metalle“, Bayreuth 2. – 3. November 2004
A Comprehensive Failure Model for Crashworthiness Simulation of Aluminium Extrusions. International Journal of Crashworthiness, Vol. 9, No.5, Woodhead Publishing (2004), pp. 449-463.
CrachFEM – A Comprehensive Failure Model for Metallic Structures in Sheet Metal Forming and Crash Simulation. Europam 2004, October 11th to 13th, Paris, France
Ein neuer Prüfkörper für das experimentelle Ranking von Al-Zylinderkopflegierungen bei thermomechanischer Beanspruchung. Werkstoffwoche 2004, 21.-23. September 2004, München
Virtuelle Fahrzeugentwicklung verbessern mit neuen Materialmodellen: Crashsimulation im Automobilbau – Modellierung metallischer Werkstoffe. Aufsatz in Konstruktion, Heft 7/8-2004, Springer Verlag, S.4-6
Ein umfassendes Materialmodell für die Versagensbewertung in der Prozesskette Tiefziehen-Crash. CrashMAT2004, 27./28. April 2004, EMI, Freiburg
Verbesserte Material- und Versagensmodelle für die Umform- und Crashsimulation. Werkstofftag 2003 — Neue Materialien für die Automobilindustrie, 4. November 2003, Gürzenich, Köln
Methodology, Validation and Application of a Failure Model Based on Transient Forming Limit Curves for Coupled Stamping and Crash Processes as Part of the IMPACT Project. Europam 2003, October 16th to 17th, Mainz, Germany
A New Comprehensive Failure Model for Crashworthiness Simulation – Validation for Aluminum Extrusions. Europam 2003, October 16th to 17th, Mainz, Germany
Bewertung der thermomechanischen Ermüdung von Kolben aus Al-Gusslegierungen im außermotorischen Experiment und durch FEM-Simulation. VDI-Tagung „Zylinderlaufbahn, Hochleistungskolben, Pleuel“, München, 16./17. September 2003
Thermal fatigue component test of engine parts. International Congress Thermal Stresses ICTS 2003, 8. – 11. Juni 2003, Blacksburg Virgina USA
Improved Plasticity and Failure models for Extruded Mg-Profiles in Crash Simulations. 4th European LS-DYNA Users Conference, May 22nd and 23rd, 2003, Ulm, Germany
Crash Simulation on Body Structural Components Made out of Extruded Magnesium. SAE Technical Paper Series 2003-01-259, March 3rd to 6th, 2003, Detroit
Ermittlung von Fließwiderstandskurven bei großen Formänderungen für die Blechumformsimulation. DVM-Tagung „Werkstoffprüfung 2002 -Kennwertermittlung für die Praxis“, 5. und 6. Dezember 2002, Bad Nauheim
Zur Bedeutung dehnratenabhängiger Werkstoffkennwerte in der Crashsimulation. DVM-Tagung „Werkstoffprüfung 2002 — Kennwertermittlung für die Praxis“, 5. und 6. Dezember 2002, Bad Nauheim
Enhanced Failure Prediction in Sheet Metal Forming Simulations through Coupling of LS-Dyna and Algorithm CRACH. Proceeding of 7th International LS-Dyna Users Conference 2002, May 19th to 21st, 2002, Dearborn, Michigan, U.S.A. LSCT ETA, 2002 LS-Dyna Users Conference, September 19th and 20th, 2002, Bad Mergentheim, Germany
Continuous Failure Prediction for Steel Sheets in Successive Stamping and Crash Simulations through Coupling of PAM-Solid and CRACH. EuroPAM ’01 (CD-ROM), October 18th and 19th, 2001, Heidelberg, Germany
Fracture Criteria For Crash Simulation of Wrought Aluminium Alloy Components. EuroPAM ’01, October 18th and 19th, 2001, Heidelberg, Germany
Fracture Criteria for Automobile Crashworthiness Simulation of Wrought Aluminium Alloy Components. Materialwissenschaften u. Werkstofftechnik 32, 712-714 (2001), WILEY-VCH Verlag GmbH, Weilheim
Continuous failure Prediction Model for Nonlinear Load Paths in Successive Stamping and Crash Processes. SAE Technical Paper Series 2001-01-1131
Macroscopic and Mesoscopic Models for Fracture in Sheet Metal Forming. Y. Bréchet (Ed.), Microstructures, Mechanical Properties and Processes – Computer Simulation and Modelling, EUROMAT 99 – Volume 3, Wiley-VCH, Weinheim, 2000
Plastizitätsmodelle für die Simulation der Blechumformung. Kopp, B.; Beiss, P.; Herfurth, K.; Böhme, D.; Bormann, R.; Arzt, E. und Riedel, H. (Hrsg.): Tagungsband der Werkstoffwoche ’98, Band VI, Werkstoff-Informationsgesellschaft, Frankfurt, 1999
Schnelle Bewertung der industriellen Anwendbarkeit Neuer Materialien durch Simulation. „Impulse für kleine und mittelständische Unternehmen durch Neue Materialien“, Vortragsveranstaltung der Interessengemeinschaft Neue Materialen in NRW e.V. am 23. September ’98 im Technologiepark Bergisch Gladbach
Überblick zur Werkstoffcharakterisierung in der Simulationsrechnung. Werkstoff-Forum auf der Hannover-Messe 1998, Vortragsveranstaltungen im Innovationszentrum „Ingenieur-Werkstoffe“
Metalle als Werkstoff der Revisionsendoprothetik. Workshop Endoprothesenwechsel Kniegelenk, 12.-14. April 1998, Klinik für Orthopädie und Sportorthopädie an der Technischen Universität München
Stretch Forming of Aluminium Sheets. PAM ’97, October 16th to 17th 1997, Prague, Czech Republic
Optimierung des Designs von Knieendoprothesen zur Reduzierung der Materialbelastung. „Die Methoden der Finiten Elemente in der Biomedizin und angrenzenden Wissenschaften“, Workshop 1996, 22. und 23. Juli 1996 an der Universität Ulm, Universitätsverlag Ulm GmbH, ISBN 3-89559-232-3
Nichtlineare Modellierung von Kontaktflächen bei Implantaten. 13. CAD-FEM Users’ Meeting, 25.-27. Oktober 1995, Bad Wildungen, Vortrag I-6, 6 Seiten, CADFEM GmbH, 1995