Help on Pressure Dependent Multiyield Material

[gmondal]

Hi,
I am using "“PressureDependMultiYield” and “FluidSolidPorousMaterial” material to model the saturated sand under undrained seismic loading. I am getting excessive generation of excess pore pressure and the excess pore pressure ratio exceeds 1 when soil liquefies.

I have not been able to figure out if this a numerical error or there is something that I am missing.

Can somebody hepl me in resolving this issue.

Thanks in advance.

Goutam

[cyz1654]

hello,could you tell me how to get pore pressure ratio?