OptiStruct Interface Enhancements OptiStruct Interface Enhancements Overview Support of Solution Control Parameters for OptiStruct Non Linear Analysis Setup. Contact – Tie card, clearance and Adjust parameter support. Abaqus to OptiStruct – Contact Parameters Conversion support. Contact Definition File – OptiStruct supported. Gasket Material and Property parameters support enhanced. Thermal Analysis support updated – Uniform Flux, Convection, Initial Temperature, Temperature and Contact Gap Conductance Supported. 1D Pretension support. Excite Analysis Parameters Support. Normal Mode Analysis parameters cleanup. Enforced Displacement – Card Implementation changed from SPCD to SPC. ASSIGN card support. Matrix Solver Type Selection support added for OptiStruct.