Mechanical Characterization and Modeling of Cyclic Behavior of Ultra High Molecular Weight Polyethylene (UHMWPE)

Modelling of biaxial ratcheting behaviour of ultrahigh-molecular-weight polyethylene with viscoplasticity theory based on overstress for polymers

“…To improve the circumferential strain ratcheting response of UHMWPE, the changes are designed to account for kinematic hardening and tangent modulus effects. Numerical results are compared with the experimental data obtained by Colak et al and Asmaz et al Good match with experimental data is obtained when the modified Chaboche kinematic hardening law is used in the VBOP model with variable tangent modulus.…”

“…The proposed changes are designed to account for kinematic hardening and tangent modulus effects relevant to the modelling of ratcheting behaviour of UHMWPE. Numerical results are compared with the experimental data obtained by Colak et al and Asmaz et al It is shown that modified tangent modulus improves the model responses and a good match with experimental data is obtained.…”