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How to solve problem with Huang plasticity subroutine and cohesive surface?

Dear All,

I defined cohesive surface between grains boundary of my model which the Hunag plasticity subroutine is also used. I used stainless steel as material and the problem is that the traction-separation plot is not the one I expect due to CS properties and the maximum force that the diagram shows me is around 120e6 Mpa while I expect to see the value around just 120 Mpa.

Cohesive Behavior, eligibility=ORIGINAL CONTACTS

204600., 78692.3, 78692.3

*Damage Initiation, criterion=QUADU

 1e-06, 1e-06, 1e-06

*Damage Evolution, type=DISPLACEMENT

 1.955e-05,

*Damage Stabilization

0.1

The forces are defined in Mpa and displacement in mm. Does anyone know that how I can solve this problem?

Thank you,

Arman

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