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flow rule and hardening work in ottosen model
Posted 2019年7月10日 GMT-4 上午11:46 Geomechanics, Structural Mechanics & Thermal Stresses 4 Replies
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I am trying to model a piece of concrete and I need information about how the ottosen concrete model in comsol adopts yield surface, pastic flow and the work hardening; someone has information about this or where to look?
Thanks for all
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The Ottosen model does not include any hardening. The expression for the yield surface can be found in the theory section in the Structural Mechanics User's Guide. The flow rule is associated.
Regards,
Henrik
Henrik Sönnerlind
COMSOL
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Thanks, Henrik, just one more question, the surface of failure coincides with the yield and there can be no tension state outside of it?
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Yes, that is correct.
Henrik
-------------------Henrik Sönnerlind
COMSOL
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Thanks very much