Micro-mechanical numerical analyses on damage of ductile metals

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Current developments in lightweight structural engineering require high demands on used materials. Therefore, detailed knowledge on their behavior is necessary to be able to numerically predict the safety of structural components or complex innovative lightweight structures. In this context, enhancement of a continuum damage and failure model will be performed to numerically simulate the deformation and failure behavior of ductile metals under generalized dynamic loading conditions. The phenomenological model is based on systematic numerical analyses on the micro-scale to be able to detect different damage mechanisms up to final fracture. Based on numerical results it will be possible to develop constitutive equations and to identify corresponding material parameters which cannot be determined by experiments. One goal of this research project is to establish a set of "numerical experiments" used for parameter identification in analysis of safety and service life prediction in practical disciplines like structural and aviation engineering or car industry.