Exponential softening shear force after peak- model implementation
Asked by
chanaka Udaya
Dear all,
I'm trying to obtain an exponential softening shear behavior (damage-plasticity) after peak stress instead of Mohr-coulomb failure with cohesion which is currently implemented CPM model in Yade.
shear stress will be calculated as follows,
sigma_S= k_s*(1-
D=1- exp(-|Us_
and yield criteria is
F=|sigma_S|- Cohesion*(1-D) , cohesion is scalar value say ,1e6 like that
from yield function F, I can calculate the scalar value of plastic shear displacement, but the problem is how to update the plastic shear displacement vector?
Could you please help me to solve this issue?
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- Solved
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- Yade Edit question
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- Solved by:
- Jan Stránský
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