23 November 2023 0 9K Report

I'm studying on the rate-dependent plasticity of HDPE under different loading rate. I have found that the TLV (two-layer viscoplasticity) model is promising for numerical simulating the rate-dependent plastic deformation of polymer material by using Finite element method. But the curves produced by my model are greatly higher than the corresponding curves from experiment, particularly in the later loading stage beyond the yield point.

For your convenience, the input file of the model is attached, please check. Could you please take a look on my model or give me some tips for using the TLV model in Abaqus?

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