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Topic starter
19/06/2025 9:11 pm
May i know what is the formulation or the criterion used by Geoxpm for drucker prager softening, especially for the coefficient a and b.
23/06/2025 4:53 pm
@madelestin They are the softening parameters for the cohesion
c = c_0 - a*c_0*(1-exp(-b*kappa))
where kapa is the equivalent accumulated plastic shear strain