Multiscale Modelling Approaches to the Plastic Deformation of BCC Metals
Event details
| Date | 12.10.2015 |
| Hour | 13:15 › 14:15 |
| Speaker | Prof. Peter Gumbsch, Fraunhofer-Institut für Werkstoffmechanik IWM, Freiburg Allemagne |
| Location | |
| Category | Conferences - Seminars |
Plastic deformation of body-centered cubic (bcc) metals is characterized by several specific aspects as for example a strong temperature dependence of the flow stress, a brittle-to-ductile transition and a significant tension/compression asymmetry which are not known from other metallic materials. Most of these specifics can be related to the behavior of screw dislocations in bcc metals [1] but this relation so far is mostly anecdotal and materials specific differences can often not be explained. We are therefore undertaking significant efforts of building a rigorous multiscale modeling framework to describe these properties quantitatively. This is based on an atomistic level understanding of dislocation core structures and energetics. These simulations reveal important details about the influence of non-Schmid (nonglide) stresses on the mobility of screw dislocations which can then be implemented to mesoscopic discrete dislocation dynamics (DDD) simulations [2].
I will report examples where DDD simulations help to understand elementary processes of dislocation interaction and show applications of DDD simulations to studies of plasticity in small-scale bcc single crystals. I will end with an outlook on the development of continuum models based on advanced 3D dislocation density measures with evolution equations that naturally track dislocation motion [1].
[1] D. Weygand, M. Mrovec, T. Hochrainer, P. Gumbsch, »Multiscale Simulation of Plasticity in bcc Metals«, Annual Review of Materials Research 45 (2015) 369-390.
[2] K. Srivastava, R. Gröger, D. Weygand, P. Gumbsch, »Dislocation motion in tungsten: Atomistic Input to Discrete Dislocation Simulations«, International Journal of Plasticity 47 (2013) 126–142.
Bio: Peter Gumbsch
Born 21.01.1962 in Pforzheim, Germany
Married, three children
Professional Experience
since 2001
Full professor for mechanics of materials and head of the Institute for Applied Materials-Reliability of Components and Systems (IAM-ZBS) at Karlsruhe Institute of Technology KIT (formerly University of Karlsruhe), Germany
since 2001
Head of the Fraunhofer Institute for Mechanics of Materials IWM with locations in Freiburg and Halle/Saale, Germany
2012
Researcher in Residence, International Center for Materials Research, University of California, Santa Barbara (6 months)
2006
Visiting Professor, School of Engineering, University of California, Santa Barbara (5 months)
1997 - 2001
Head (C3) of the Research Group »Modelling and Simulation of Thin Film Phenomena«, Max-Planck-Institut für Metallforschung, Stuttgart, Germany
1993 - 1996
Research Associate (wissenschaftlicher Mitarbeiter), Max-Planck-Institut für Metallforschung, Stuttgart, Germany
1992
Visiting Scientist, University of Oxford, UK (4 months)
1991 - 1992
Research Associate, Imperial College for Science, Technology and Medicine, Department of Mathematics, London, UK
1989
Visiting Scientist, Sandia National Laboratories, Livermore, USA (6 months)
University Education
1991
Dr. rer. nat. (with distinction), University of Stuttgart, Germany for thesis entitled (in English) Atomistic Study of two dimensional Defects in Metals: Cracks and Interfaces
1988-1991
Doctoral Scholar, Max-Planck-Institut für Metallforschung, Stuttgart, Germany
1988
Diploma Thesis in Physics at the Max-Planck-Institut für Metallforschung, Stuttgart, Germany entitled (in English) Structure of Heterophase Boundaries in the Nickel/Silver System
1982-1990
Student of Economics (Diplomstudiengang), University (Gesamthochschule) Hagen, Germany
1981-1988
Student of Physics (Diplomstudiengang), University of Stuttgart, Germany
Professional Activities (selection)
since 2015
Member of the German Council of Science and Humanities
since 2015
Member of the Scientific Advisory Board, Max Planck Institute for Iron Research GmbH
since 2014
Member of the Steering Panel »Centers for Doctorial Training CDT«, University of Cambridge
since 2013
Member of the External Advisory Board »Predictive Integrated Structural Materials Science PRISMS«, University of Michigan
since 2013
Member of the Selection Committee, Karl Heinz Beckurts-Stiftung
since 2008
Member of the Selection Committee for the Alexander von Humboldt-Professorship, Alexander von Humbold Foundation AvH, Germany
since 2008
Member of the Section Technical Sciences of the German Academy of Sciences Leopoldina, (since 2011 member of the Senate of the Academy and Chairman of the Section Technical Sciences)
since 2008
Member of the Scientific Advisory Board, Erich Schmid Institute of Materials Science, Austrian Academy of Sciences ÖAW, Austria
since 2008
Member of the Advisory Board (Kuratorium), Naturwissenschaftliches und Medizinisches Institut NMI at University Tübingen, Germany
since 2008
Member of the Advisory Board of Advanced Engineering Materials
since 2007
Member of the Board of Trustees and of the Scientific Board, Instituto Madrileno de Estudios Avancados, IMDEA Materiales, Madrid, Spain
since 2006
Member of the Editorial Board (Regional Editor) of International Journal of Fracture
since 2005
Member of the Scientific Advisory Board (Kuratorium), Freiburger Materialforschungszentrum FMF, Freiburg, Germany
since 2001
Member of the Scientific and Technical Council (WTR) of the Fraunhofer Society
2007 - 2014
Member of the Founding Commission and the Scientific Advisory Board, Interdisciplinary Centre for Advanced Materials Simulation ICAMS, Ruhr-Universität Bochum, Germany
2004 - 2013
Member of the Expert Committee (Projektkomitee) "Component Behavior" of the German Society for Reactor Safety (GRS)
2010 - 2012
Member of the Senate Committee „Competition“ (Senatsausschuss Wettbewerb SAW) of the Leibniz-Gemeinschaft
2008 - 2012
Elected member of the Expert Committee (Fachkollegium) “405 materials technology” of the German Research Foundation DFG
2013
Organizer, 2nd World Congress on Integrated Computational Materials Engineering ICME, 7-11 July 2013, Salt Lake City, Utah, USA
2012
Organizer, ECI Conference »Harnessing the Materials Genome: Accelerated Materials Development via Computational and Experimental Tools«, September 30. – October 5., Vail, Colorado, USA
2010
Organizer of the 5th International Conference »Multiscale Materials Modeling«, October 4.-8. Freiburg, Germany
2009
Meeting Chair, »2009 Fall Meeting« der Materials Research Society MRS, November 11. – December 4., Boston
2006
Organizer of the 3rd International Conference »Multiscale Materials Modeling«, September 18.-22., Freiburg, Germany
Awards and Honors
2013
DGM-Award, Deutsche Gesellschaft für Materialkunde DGM
2011
Advisory Professor der Shanghai Jiao Tong Universität, China
2009
Hector Fellow, Hector Foundation II
2007
Gottfried Wilhelm Leibniz Award, Deutschen Forschungsgemeinschaft
2005-2007
Visiting Professor, Lanzhou University, China
1998
FEMS Lecturer, Federation of European Materials Societies
1998
Masing Memorial Prize, Deutsche Gesellschaft für Materialkunde DGM
1997
Peter Haasen Prize, Institut für Metallphysik, Universität Göttingen in association with Peter-Haasen-Stiftung
1992
Otto Hahn Medal, Max-Planck-Gesellschaft
Publications, Patents and supervision
Total number of peer reviewed publications: 225
Total numbers of patents: 3
Total number of supervised dissertations: 26 primary supervisor, 30 secondary supervisor
I will report examples where DDD simulations help to understand elementary processes of dislocation interaction and show applications of DDD simulations to studies of plasticity in small-scale bcc single crystals. I will end with an outlook on the development of continuum models based on advanced 3D dislocation density measures with evolution equations that naturally track dislocation motion [1].
[1] D. Weygand, M. Mrovec, T. Hochrainer, P. Gumbsch, »Multiscale Simulation of Plasticity in bcc Metals«, Annual Review of Materials Research 45 (2015) 369-390.
[2] K. Srivastava, R. Gröger, D. Weygand, P. Gumbsch, »Dislocation motion in tungsten: Atomistic Input to Discrete Dislocation Simulations«, International Journal of Plasticity 47 (2013) 126–142.
Bio: Peter Gumbsch
Born 21.01.1962 in Pforzheim, Germany
Married, three children
Professional Experience
since 2001
Full professor for mechanics of materials and head of the Institute for Applied Materials-Reliability of Components and Systems (IAM-ZBS) at Karlsruhe Institute of Technology KIT (formerly University of Karlsruhe), Germany
since 2001
Head of the Fraunhofer Institute for Mechanics of Materials IWM with locations in Freiburg and Halle/Saale, Germany
2012
Researcher in Residence, International Center for Materials Research, University of California, Santa Barbara (6 months)
2006
Visiting Professor, School of Engineering, University of California, Santa Barbara (5 months)
1997 - 2001
Head (C3) of the Research Group »Modelling and Simulation of Thin Film Phenomena«, Max-Planck-Institut für Metallforschung, Stuttgart, Germany
1993 - 1996
Research Associate (wissenschaftlicher Mitarbeiter), Max-Planck-Institut für Metallforschung, Stuttgart, Germany
1992
Visiting Scientist, University of Oxford, UK (4 months)
1991 - 1992
Research Associate, Imperial College for Science, Technology and Medicine, Department of Mathematics, London, UK
1989
Visiting Scientist, Sandia National Laboratories, Livermore, USA (6 months)
University Education
1991
Dr. rer. nat. (with distinction), University of Stuttgart, Germany for thesis entitled (in English) Atomistic Study of two dimensional Defects in Metals: Cracks and Interfaces
1988-1991
Doctoral Scholar, Max-Planck-Institut für Metallforschung, Stuttgart, Germany
1988
Diploma Thesis in Physics at the Max-Planck-Institut für Metallforschung, Stuttgart, Germany entitled (in English) Structure of Heterophase Boundaries in the Nickel/Silver System
1982-1990
Student of Economics (Diplomstudiengang), University (Gesamthochschule) Hagen, Germany
1981-1988
Student of Physics (Diplomstudiengang), University of Stuttgart, Germany
Professional Activities (selection)
since 2015
Member of the German Council of Science and Humanities
since 2015
Member of the Scientific Advisory Board, Max Planck Institute for Iron Research GmbH
since 2014
Member of the Steering Panel »Centers for Doctorial Training CDT«, University of Cambridge
since 2013
Member of the External Advisory Board »Predictive Integrated Structural Materials Science PRISMS«, University of Michigan
since 2013
Member of the Selection Committee, Karl Heinz Beckurts-Stiftung
since 2008
Member of the Selection Committee for the Alexander von Humboldt-Professorship, Alexander von Humbold Foundation AvH, Germany
since 2008
Member of the Section Technical Sciences of the German Academy of Sciences Leopoldina, (since 2011 member of the Senate of the Academy and Chairman of the Section Technical Sciences)
since 2008
Member of the Scientific Advisory Board, Erich Schmid Institute of Materials Science, Austrian Academy of Sciences ÖAW, Austria
since 2008
Member of the Advisory Board (Kuratorium), Naturwissenschaftliches und Medizinisches Institut NMI at University Tübingen, Germany
since 2008
Member of the Advisory Board of Advanced Engineering Materials
since 2007
Member of the Board of Trustees and of the Scientific Board, Instituto Madrileno de Estudios Avancados, IMDEA Materiales, Madrid, Spain
since 2006
Member of the Editorial Board (Regional Editor) of International Journal of Fracture
since 2005
Member of the Scientific Advisory Board (Kuratorium), Freiburger Materialforschungszentrum FMF, Freiburg, Germany
since 2001
Member of the Scientific and Technical Council (WTR) of the Fraunhofer Society
2007 - 2014
Member of the Founding Commission and the Scientific Advisory Board, Interdisciplinary Centre for Advanced Materials Simulation ICAMS, Ruhr-Universität Bochum, Germany
2004 - 2013
Member of the Expert Committee (Projektkomitee) "Component Behavior" of the German Society for Reactor Safety (GRS)
2010 - 2012
Member of the Senate Committee „Competition“ (Senatsausschuss Wettbewerb SAW) of the Leibniz-Gemeinschaft
2008 - 2012
Elected member of the Expert Committee (Fachkollegium) “405 materials technology” of the German Research Foundation DFG
2013
Organizer, 2nd World Congress on Integrated Computational Materials Engineering ICME, 7-11 July 2013, Salt Lake City, Utah, USA
2012
Organizer, ECI Conference »Harnessing the Materials Genome: Accelerated Materials Development via Computational and Experimental Tools«, September 30. – October 5., Vail, Colorado, USA
2010
Organizer of the 5th International Conference »Multiscale Materials Modeling«, October 4.-8. Freiburg, Germany
2009
Meeting Chair, »2009 Fall Meeting« der Materials Research Society MRS, November 11. – December 4., Boston
2006
Organizer of the 3rd International Conference »Multiscale Materials Modeling«, September 18.-22., Freiburg, Germany
Awards and Honors
2013
DGM-Award, Deutsche Gesellschaft für Materialkunde DGM
2011
Advisory Professor der Shanghai Jiao Tong Universität, China
2009
Hector Fellow, Hector Foundation II
2007
Gottfried Wilhelm Leibniz Award, Deutschen Forschungsgemeinschaft
2005-2007
Visiting Professor, Lanzhou University, China
1998
FEMS Lecturer, Federation of European Materials Societies
1998
Masing Memorial Prize, Deutsche Gesellschaft für Materialkunde DGM
1997
Peter Haasen Prize, Institut für Metallphysik, Universität Göttingen in association with Peter-Haasen-Stiftung
1992
Otto Hahn Medal, Max-Planck-Gesellschaft
Publications, Patents and supervision
Total number of peer reviewed publications: 225
Total numbers of patents: 3
Total number of supervised dissertations: 26 primary supervisor, 30 secondary supervisor
Links
Practical information
- General public
- Free
Organizer
- Fabien Sorin
Contact
- Fabien Sorin