题目：Perspectives in the Theory and Numerics of Configurational Mechanics
报告人： Professor Paul Steinmann
Chair of Applied Mechanics, University of Erlangen/Nuremberg, Germany
Abstract：
Over the recent years configurational mechanics has developed into a very active and successful topic both in continuum mechanics as well as in computational mechanics. On the continuum mechanics side the basic idea is to consider energy variations that go along with changes of the material configuration. Configurational forces are then energetically dual to these configurational changes. Configurational forces take the interpretation as being the driving forces in the kinetics of defects; like e.g., cracks, inclusions, phase boundaries, dislocations and the like. On the computational side it turns out that a discretisation scheme brings in artificial, discrete configurational forces that indicate in a certain sense the quality, e.g., of a finite-element mesh. This information can then be used to optimize the nodal material positions. Surprisingly, even driven by energetical arguments, it turns out that a finite element mesh optimized with respect to discrete configurational forces also renders superior results in terms of classical error measures. The lecture will span the field from the underlying theoretical foundations over the algorithmic challenges to various computational applications.
Brief CV: Paul Steinmann, born on 09.02.1962 in Bielefeld, Germany, is presently Professor and Chair of Applied Mechanics, University of Erlangen/Nuremberg. He got his Diplom (with distinction) in Civil Engineering of University of Hannover in 1988 and PhD degree in Institute of Mechanics, University of Karlsruhe in 1992. From 1992 to 1997, he was the research associate/assistant Professor in Institute of Structural & Numerical Mechanics, University of Hannover. In 1997, he moved to University of Kaiserslautern and became Full Professor, Chair of Applied Mechanics in University of Kaiserslautern. He became full Professor, Chair of Applied Mechanics, University of  Erlangen/Nuremberg since 2007. The research fields of Paul Steinmann cover Nonlinear Continuum Mechanics, Computational Mechanics/Dynamics, Congurational Mechanics and Gradient Continua, etc. He has published more than 100 reviewed journal publications. He holds many Society Membership and Editor, Editorial/Advisory Board Membership.
主持人：段慧玲  特聘研究员
时间：10月9日（周四）下午3:00
地点：湍流会议室
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