The objective of the present work is to model a FEM car frame and solve for strength analysis using RADIOSS solver, and to determine the torsion stiffness and bending stiffness of a stainless steel FEM car frame, isotropic type by using torsion analysis and bending analysis. Also to improve the stiffness of the car frame by changing the geometrical dimension and structural properties. Two static load-cases are defined to compare the Original and the Modified model by evaluating the stiffness of the full vehicle under torsion and bending in accordance with the standards used by automotive OEM companies. A dynamic comparison is done between two models, based on global frequencies and modal shapes of the full vehicle. Design improvements are made to improve the load carrying capacity of the structure. Thickness has been modified to study as a part of the improvement.
FEM car frame, torsion analysis, bending analysis, RADIOSS
