Numerical Stiffness Simulation of Autobody Cover Panel for High Strength Steel Based on Lightweight

Abstract:

Based on shell finite element theory and autobody design standards,numerical material lightweight simulation of autobody cover panel is presented by using high strength baked hardening steel on engine hood.Bending stiffness and torsion stiffness analysis model on structural simulation is constructed.By replacing the traditional carbon steel ST14 with high strength steel BH340,the weight of engine hood panel can be reduced by 14.28% while the requirement of autobody stiffness design standard is satisfied.BH340 is recommanded for engine hood as new lightweight material.

Key words:autobody stiffness; lightweight; high strength steel; numerical simulation