DENTING SIMULATION OF BIW EXTERIOR PANEL OF VEHICLE

Present study deals with the finite element analysis (FEA), specifically denting simulation of upper rear bumper of vehicle to analyze the denting resistance of this plastic panel. This study involves the 3D scanning of upper rear bumper (plastic panels) of vehicle in laboratory for CAD model, tensile testing of test specimens for stress-strain material properties, FE model built-up for analysis using preprocessor, computer aided engineering simulation of this panel against denting using solver, analysis of simulation results using post-processor and physical denting test in laboratory on weak positions extracted from the denting simulation. Various commercially available finite element analysis tools like pre-processor, solver and post-processor are used in this analysis study. At the end of this study comparison of the simulation results with that of physical test results is performed to establish percentage correlation. The comparison of simulation results with that of experimental results shows that physical denting test results matches with FEA simulation results with small deviation.