This chapter describes the formats and functionalities of
the different solvers supported by SIMULIA Tosca Structure.
The topological and physical properties of the analysis model (finite
element input deck) are required for the optimization of an FE model.
Normally, not all information contained in the analysis model is necessary
for an optimization. The optimization module returns the modified model
data to the FE solver. The node coordinates are changed during shape
and bead optimization. New materials and element properties are generated
during topology optimization and the assignments of the elements to the
material definitions and material properties are changed. Therefore,
there are very few restrictions to the FE modeling (finite element input
deck).