flow rule and hardening work in ottosen model

Horacio Nestor Fideleff

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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


4 Replies Last Post Jul 15, 2019, 3:14 PM EDT
Henrik Sönnerlind COMSOL Employee

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Posted: 1 week ago Jul 11, 2019, 4:26 AM EDT
Updated: 1 week ago Jul 11, 2019, 4:25 AM EDT

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

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

Horacio Nestor Fideleff

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Posted: 7 days ago Jul 12, 2019, 3:07 PM EDT
Updated: 7 days ago Jul 12, 2019, 2:59 PM EDT

Thanks, Henrik, just one more question, the surface of failure coincides with the yield and there can be no tension state outside of it?

Thanks, Henrik, just one more question, the surface of failure coincides with the yield and there can be no tension state outside of it?

Henrik Sönnerlind COMSOL Employee

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Posted: 4 days ago Jul 15, 2019, 2:30 AM EDT
Updated: 4 days ago Jul 15, 2019, 2:27 AM EDT

Yes, that is correct.

Henrik

Yes, that is correct. Henrik

Horacio Nestor Fideleff

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Posted: 4 days ago Jul 15, 2019, 3:14 PM EDT
Updated: 4 days ago Jul 15, 2019, 3:06 PM EDT

Thanks very much

Thanks very much

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