A COVARIANT FORMULATION OF FINITE PLASTICITY WITH DEFORMATION-INDUCED EVOLUTION OF ANISOTROPY: MODELING, ALGORITHMICS, SIMULATION, AND COMPARISON TO EXPERIMENTS

T. Kaiser, J. Lu, A. Menzel, and P. Papadopoulos
International Journal of Solids and Structures, 185-186, pp. 116-142, (2020)



Abstract

Motivated by experimental findings on sheet-metal forming, this article concerns the modeling of evolving anisotropies in finite plasticity. A covariant formulation of plasticity is employed in conjunction with evolution equations for the structural tensors that characterize the symmetry group of the yield function. A specific model is implemented into a finite element code to simulate tension and torsion tests. The results are then compared to experiments.


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