A Model Adaptive Strategy to Capture Strong Discontinuities at Large Inelastic Strains
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چکیده
The aim of this contribution is the development of a finite element formulation taylored to capture strong discontinuities within geometrically nonlinear solid mechanics. Thereby, strong discontinuities are considered as the final failure mechanism within localization problems. The failure kinematics are governed by the jumps in the nonlinear deformation map across the discontinuity. In the finite element discretization an interface element is endowed with these kinematics. As a consequence, the interface stiffness is dominated by the weighted spatial localization tensor. Based on these developments a model adaptive strategy is proposed and is computationally highlighted.
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تاریخ انتشار 1998