Unfortunately I cannot use a canned program, because I am doing some modeling that is integral with the FEM procedure. So yes, I do have to write my own program. Any suggestions?
Santhosh
I am trying to solve a FEA problem with viscoplastic strains using the fully explicit method described in Zienkiewicz, Vol 2, Chap. 7. It is basically a Euler method of solving the nonlinear equations, and I am having convergence problems. I cannot use the implicit method because the Jacobian...