I am analyzing the elastomeric seal subjected to very high pressure. The stress generated is above the elastic limit. Which material model needs to be implemented to take the plasticity into consideration?
1) If you do not need in studying effects of unloading, then any of suitable hyperelastic models can be used.
2) If you need to simulate processes with unloading, then the problem may be more complicated. In Abaqus, all the plastic models require elastic material model at the elastic stage (and not a hyperelastic). So, within Abaqus there is no straightforward ability to couple plasticity with hyperelasticity. But you can generate your own Fortran subroutine Umat/Vumat.
1) If you do not need in studying effects of unloading, then any of suitable hyperelastic models can be used.
2) If you need to simulate processes with unloading, then the problem may be more complicated. In Abaqus, all the plastic models require elastic material model at the elastic stage (and not a hyperelastic). So, within Abaqus there is no straightforward ability to couple plasticity with hyperelasticity. But you can generate your own Fortran subroutine Umat/Vumat.
I perfectly agree with the comment of Sergey Kuznetsov, So, you either work with the available ready-to-use hyperelastic model in Abaqus (Hashin), or the other option is to use your own fortran soubroutine UMAT/VUMAT.
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