STUDY ON THE INFLUENCE OF THE LENGTH OF THE THIN-WALLED COMPONENT ON THE CRASHWORTHINESS

The influence of length of the metal thin-walled component with a square cross-section on the crashworthiness is studied,where the specific energy absorption(SEA) is taken as the objective function by using the response surface method(RSM) on a basis of the explicit finite element(FE) algorithm.The main purpose of the research is to improve the crashworthiness of the thin-walled component for energy-absorption.The response surface of SEA with respect to the total length and sectional side length of the square cross-sectional thin-walled component is obtained through the numerical analysis.The conclusions can be thus used to the optimal design of the practical energy-absorbing element and the further study.