Strain output

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nmirzai
Posts: 4
Joined: Fri Jul 22, 2016 7:26 pm
Location: University of Tehran

Strain output

Post by nmirzai » Mon Jun 24, 2019 8:28 am

Hi,

The uniaxial materials in OpenSees only give us total strains.
Since they are total strains, we have to take care of the fact that they are not necessarily monotonically increasing variables (as opposed to plastic strains). Therefore we need to compute a sort of absolute envelope in the time steps.

How can we extract the plastic strain?
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selimgunay
Posts: 913
Joined: Mon Sep 09, 2013 8:50 pm
Location: University of California, Berkeley

Re: Strain output

Post by selimgunay » Mon Jun 24, 2019 4:09 pm

plastic strain = strain - yield strain
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