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Defining an elastoplastic material

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Hello. New user here.

When I attempt to define an elastoplastic material using a hardening function - a stepwise thing based on tensile tests of an existing alloy - I guess I should make it based on the plastic deformation parameter "epe".

However - when I define (Solid Mechanics -> Linear Elastic Material->) Plasticity and set the Isotropic hardening model to "Hardening function" I get solver complaints that "epe is undefined".

When I do searches on this issue I mostly just get endless technobabble about Tresca vs Mises and various failure criterions - nothing that applies to this particular problem - and examples from like COMSOL 5.5 where the Settings look nothing like now. There they just throw in epe in the equations and Bob's your uncle.

So what am I doing wrong here?


0 Replies Last Post Jan 23, 2024, 8:35 a.m. EST
COMSOL Moderator

Hello Michail Stockfelt

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