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I used the following to simulate triaxial test on a 8 node brick element. But the response that I get is purely elastic and no hardening is observed in the output even if I vary kinf and ko by any amount. Please help .. Thanks wipe model BasicBuilder -ndm 3 -ndf 3 #--create the nodes node 1 1.0 0.0 ...

Thank you for your suggestion.. I tried it , but it still doesnt work!! The manual says that the updateMaterial command is for PressureDependMultiYield . Should it also work for Druker Prager material?? Thanks

I used the following to simulate triaxial test on a 8 node brick element. But the response that I get is purely elastic and no hardening is observed in the output even if I vary kinf and ko by any amount. Please help .. Thanks wipe model BasicBuilder -ndm 3 -ndf 3 #--create the nodes node 1 1.0 0.0 ...