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How to cope with the KKT condition for a plasticity or damage model without programming
Posted 4 juin 2019, 08:05 UTC−4 Structural & Acoustics, Geomechanics, Structural Mechanics Version 5.4 0 Replies
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Hi, everyone,
I want to develop a damage model in COMSOL. However, different from the built-in damage model in which the damage evolution is explicitly expressed as a function of strain, the damage in my model involves the yield function for damage and the KKT condition. Generally, to deal with the KKT conditon, an iterative algorithm is necessary to determine the consistency coefficient. I am wondering whether there is a way to deal with the KKT condition without programming, by only using bulit-in modulus, like PDE or ODEs?
Thank you for your help and time.
-------------------Yu Zhang
Hello Yu Zhang
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