Parameter study on the quasi-statically axial crush of frusta with small semi-apical angles using finite element method

Abstract

This paper deals with collapse modes and energy absorption responses of thin-walled frusta under quasistatically axial compression using finite element method. Experiments of cylindrical tubes are carried out. The results of numerical programs match well with that of experiments. The numerical analysis is designed using design of experiments (DOE). Various sets of numerical simulations are carried out using ABAQUS/Standard. The different energy absorbing characteristics are approximated using response surface methodology (RSM). To investigate the influences of flow stress of the material on the deformation mode, specific energy absorption, the maximum load, total efficiency and effective crash distance, numerical simulations were carried out using two different materials, SPRC340S and TRIP80.