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In a soil time-history analysis study we started from a linear 2D model and would like to move on to non-linear analysis by introducing the laboratory results obtained on the ground (damping and shear modulus curves). Can you suggest which material property model is more appropriate to use? Are ...

Attached the model.
Thank you

In the attached model we would study the modification of the seismic behavior of the soil as a function of the modifications imposed on the geotechnical characteristics. The attached input file concerns the first step with linear elastic analysis, which finish without any problem but it is clear ...

Thank a lot now I can define the mesh as I wish but the analysis stops immediatley reporting the error "cannot find initial permutation". I've seen on the forum that I probably have to regolarize the mesh. It means substantianlly to build a new model. Is it right?
Thank you
GA

Hi,

I've got the same problem with my model and I can't solve it. I tried with the suggestion you gave above, but the issue still exist. I need to mesh with quadrilateral elements but when I run the model I only get triangolar elements. I'll attached the file, so maybe you can help me.