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negative elasticity modulus
- Thread starter Krzyszof
- Start date
There is no constitutive basis for a negative modulus. Materials do not behave this way, neither in reality nor in proper modeling.
Further, the use of such a construct (even when allowed by codes) almost guarantees severe convergence problems. It completely freaks out the yield surface when solving Mises plasticity problems.
I would discourage this approach.
Brad
Further, the use of such a construct (even when allowed by codes) almost guarantees severe convergence problems. It completely freaks out the yield surface when solving Mises plasticity problems.
I would discourage this approach.
Brad
- Status
