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Transversely Isotropic Plasticity with Application to Fiber-Reinforced Plastics

In this article a constitutive formulation for transversely isotropic materials is presented taking large plastic deformation at small elastic strains into account. A scalar damage model is used for the approximation of the unloading behavior. Furthermore, a failure surface is assumed taking the influence of triaxiality on fracture into account. Regularization is considered by the introduction of an internal length for the computation of the fracture energy. The present formulation is applied to the simulation of tensile tests for a molded glass fibre reinforced polyurethane material.

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