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Mohr-Coulomb

Mohr-Coulomb

Mohr-Coulomb

(OP)
Hi,guys!

I'm using solid element for the simulation of the mutilayers of the railway track.I want to use Mohr coulomb plasticity to define the material properties for the ballast,subballast and the subgrade layers.
The question is now I only have the Cohesion c and Friction angle for each material.But in ABAQUS,it requires Cohension yield stress and the abs plastic strain.I read some papers,and people say the Cohension yield stress is the Cohension c I got.But how about the abs plastic strain?How can I get it?

Thanks a lot!

RE: Mohr-Coulomb

Absolute plastic strain is zero if you are assuming elastic-perfectly plastic material properties.

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