유한요소법을 이용한 정사각형 튜브의 충격변형특성

Abstract

This paper describes the energy absorption of a square tube in the cases of two models under axial compression by using PAM-CRASHTM. The first model is the model with various thickness under contant length, and the second model is the model with various length under constant thickness. To verify the energy absorption and the effects of dimensions, the standards were used as related density and specific energy and mean crushing load. The results were discussed by the relationship between crush load vs. deformation, related density vs. specific energy, crush load vs. mean crush load, and the relationship between mean crush load vs. specific energy.