I am trying to run a finite element analysis for a collision impact. The program im using is MD Patran/Nastran. My model consists of moving object colliding with a stationary object. I have created the mesh, applied the appropriate material, applied the boundary conditions (fixed for the stationary object, and velocity for the moving object) Is there anything that I am missing, since the solver does not show the results. I have done some static analysis prior to this and have always gotten results.