ACS SASSI has a process to simulate a model with non-linear materials.
ACS-SASSI User Interface has commands to change a Linear model so it can be used in a non-linear analysis. The process is begins with creating 2 copies of the linear model in User Interface memory.
* General nonlinear model creation * Load a starting model and copy it to create a Panel Model ACTM,1 INP, Model1.pre,C:/Models/Demo/ *Starting model * Move to copy of the model to create a panel model later CPMODEL,2 *delete the shell groups from this model GDEL, ... GCOM ACTM,2 *create the panel model WALLFLR * further refine the panels ... ACTM,1 *Recombine the model panels with the non-shell elements MERGEPANEL,2
Note(s) : General Nonlinear example command list or *.pre file. The first ellipsis is a list GDEL commands to remove the shell groups from the initial model. The second ellipsis will contain different commands to split and modify the shell groups depending on the model.