Hi, I am modelling a largescale oedometer(like) setup with dynamic loading. I have tried different soil models (soft soil,MCC, Hardening,HS small etc) to simulate the dynamic behaviour but unable to produce the excess pore pressure accumulation.Excess pore pressure is always a suction during the dynamic phase. Displacement results are justifiable. Can you please help me with this problem? Thank you.
Dear Mihimal,
In order to get excess pore pressure accumulation you would need to use a constitutive model that supports pore pressure accumulation, hence a cyclic loading model. That is not MC, Soft Soil, MCC, HS or HSsmall .... they're all static models. You would have to use UBC3DPLM, PM4Sand or PM4Silt as those are models for cyclic loading and potentially liquefaction
With kind regards,
Dennis Waterman