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Abstract
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Although polymer composition of elastomeric material provides excellent performance under different loading cases, the highly nonlinear and rate-dependent behavior of these materials creates serious challenges to investigate the mechanical behavior of them. In this study, the hyperviscoelastic behavior is simulated by implementing the rate-dependent factors into the Mooney–Rivlin strain density potential with nine parameters and material properties are characterized by performing the uniaxial tension loading under different strain rates from 0.001 to 0.33/s for three different shore hardness. In the present study, a developed user-defined subroutine connected to Abaqus commercial finite-element code was employed to simulate the hyperviscoelastic behavior of polyurethane elastomers under dynamic uniaxial tensile loading. The uniaxial tension model is used to predict the hyperviscoelastic behavior and damage evolution of the material. Verification of the FEA simulation model with the experimental data provides a good agreement between the numerical and experimental results.
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