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In this paper,a driving stress finite element method of elastic-plastic large deformationbased on implicit time integrating algorithm and an eight-chain molecular network model is used for thenumerical simulation of the simple shear test of polycarbonate(PC)materials.The simulated resultsare compared with experimental ones.The strain localization propagation for the shear band deforma-tion for simple shear deformation is investigated numerieaUy.The effects of microstructure parametersin the model on strain softening and orientation hardening of the PC are discussed in detail.
In this paper, a driving stress finite element method of elastic-plastic large deformation based on implicit time integrating algorithm and an eight-chain molecular network model is used for thenumerical simulation of the simple shear test of polycarbonate (PC) materials.The simulated resultsare with experimental ones. The strain localization propagation for the shear band deforma- tion for simple shear deformation is investigated numerieaUy. The effects of microstructure parameters in the model on strain softening and orientation hardening of the PC are discussed in detail.