Hi:

I am new to ADONIS... and also new to finite element method

.

I try to make a very simple model for the analysis of a shallow foundation (strip footing). Everything works correctly when I establish an elastic linear model, but things get twisted when I use an elasto-plastic model (Mohr-Coulomb).

I attach a script to generate the geometry, boundary conditions, load and material definition, solve the model and plot y-displacements. One using linear elastic (shallow_le.ajs), another using mohr-coulomb (shallow_mc.ajs).

Can someone give me a hand? I'm sure I'm doing something wrong.

Thank you.