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Soil Yield Criterion implementation in Abaqus

Soil Yield Criterion implementation in Abaqus

Soil Yield Criterion implementation in Abaqus

(OP)
I am trying to simulate the undrained strength of clays in Abaqus in 3-D space. I want to implement Tresca and von Mises yield criteria for comparison. Should I use Mohr-Coulomb Plasticity option in Abaqus when trying to simulate Tresca yield criterion, and set the friction and dilation angles to zero and input the undrained strength in the cohesion? Or it is better to use the Plasticity option and input the Tresca yield criterion as 2*the undrained strength? The reason for this is that in 2D space, when the friction angle is zero, the Mohr-Coulomb Yield Stress will be equal to Tresca Yield Stress. I am not sure if the same holds true in 3D space.

In applying von Mises, I am thinking of using the Plasticity option and using a Yield Stress of sqrt(3)*undrained strength. Can anyone verify if this is correct?

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