TY  - EJOU
AU  - Tabiei, Ala  
AU  - Khambati, Suraush  

TI  - A 3-D Visco-Hyperelastic Constitutive Model for Rubber with Damage for Finite Element Simulation
T2  - Computer Modeling in Engineering \& Sciences

PY  - 2015
VL  - 105
IS  - 1
SN  - 1526-1506

AB  - A constitutive model to describe the behavior of rubber from low to high strain rates is presented. For loading, the primary hyperelastic behavior is characterized by the six parameter Ogden’s strain-energy potential of the third order. The rate-dependence is captured by the nonlinear second order BKZ model using another five parameters, having two relaxation times. For unloading, a single parameter model has been presented to define Hysteresis or continuous damage, while Ogden’s two term model has been used to capture Mullin’s effect or discontinuous damage. Lastly, the Feng-Hallquist failure surface dictates the ultimate failure for element deletion. The proposed model can accurately predict the response of rubber using a limited set of experimental data. The model has been validated here for the case of rubber but can be extended to a wide range of polymers.
KW  - hyperelasticity
KW  -  viscoelasticity
KW  -  hysteresis
KW  -  Mullin’s effect
KW  -  rubber
KW  -  constitutive

DO  - 10.3970/cmes.2015.105.025