Abstract
In recent years, automotive lightening is required in the automotive industry so as to increase the efficiency of fuel. And so some automotive parts are made from aluminum and/or plastics for automotive lightening. A purpose of this study is to examine a cross-section of an aluminum frame superior for energy absorbency at the crush. At first, in case of bending square pipes, results of FEM analysis are compared with experimental results and efficacy of analysis results are confirmed. As the next stage, quantity of energy absorption of cross-section with various lib are calculated. And effects of lib on quantity of energy absorption are investigated.
