A Study On The Crashworthiness Of S-shape Square Tubes
Author(s)
J. Han & K. Yamazaki
Abstract
A study on the crashworthiness of S-shape
square tubes
J. Han & K. Yamazaki
Department of Human and Mechanical Systems Engineering, Kanazawa
University, Japan
Abstract
The axial impact crushing behavior of a S-shape square tube is studied by the fi-
nite element method, and effectiveness of stiffening at the curved parts and shape
perturbation at two straight parts of tubes are discussed. Based on the numerical
analyses, maximization problem of the dynamic crushing energy absorption of S-
shape square tubes is solved by using the crashworthiness maximization tech-
nique for tubular structures which combines the techniques of response surface
approximation, design-of-experiment as well as the usual mathematical program-
ming.
1 Introduction
During car frontal crash, the front side member is expected to be folded progres-
sively, so as to absorb more energy and to ensure enough passenger space. It is
necessary to improve the crashworthiness of the front side member in order to
de
Keywords
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