CRASHWORTHINESS OPTIMIZATION OF MULTI-CELL TRIANGULAR TUBES

Abstract

This paper aims to design the multi-cell cross-sectional thin-walled columns with two crashworthiness criteria. An explicit finite element analysis (FEA) is used to derive higher-order response surfaces for these two objectives. In the process of multiobjective crashworthiness optimization, Deb and Gupta method was utilized to find out the knee points from the Pareto solutions space. The efficiency of the crashworthiness optimization design method based on surrogate models is identified.