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PEEQ in Mohr-coulomb model

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Majid_F93

Majid_F93

Geotechnical
Feb 2, 2018
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Hi everyone
I am using mohr-coulomb plasticity in my model. In this plasticity model , PEEQ defiend as a formula in below picture. I cant understanding that. Can anybody explain it for me?
Capture_oqpeg8.jpg
 
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