Effect of impact velocity on circular tubes subjected to axial loading

D.-H. Chen; K. Masuda; M. Takano; K. Ushijima

doi:doi:10.1051/jp4:2006134076

Issue		J. Phys. IV France Volume 134, August 2006 EURODYMAT 2006 - 8th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading


Page(s)		493 - 499
DOI		https://doi.org/10.1051/jp4:2006134076
Published online		26 July 2006

EURODYMAT 2006 - 8th International Conference on Mehanical and Physical Behaviour of Materials under Dynamic Loading
J. Cirne, R. Dormeval, et al.
J. Phys. IV France 134 (2006) 493-499
DOI: 10.1051/jp4:2006134076

Effect of impact velocity on circular tubes subjected to axial loading

D.-H. Chen¹, K. Masuda², M. Takano³ and K. Ushijima⁴

¹ Dept. of Mech. Eng., Faculty of Eng., Tokyo University of Science, 3-1 Kagurazaka, Shinjyuku-ku, Tokyo 162-8601, Japan
² Graduate School of Eng., Tokyo University of Science, 3-1 Kagurazaka, Shinjyuku-ku, Tokyo 162-8601, Japan
³ Former Graduate Student, Graduate School of Eng., Faculty of Eng.,Tokyo University of Science, 3-1 Kagurazaka, Shinjyuku-ku, Tokyo 162-8601, Japan
⁴ Dept. of Mech. Eng., Faculty of Eng., Kyushu Sangyo University, 2-3-1 Matsukadai, Higashi-ku, Fukuoka-shi, Fukuoka 813-8503, Japan

Published online: 26 July 2006

Abstract
A numerical simulation based on FEM is used to study the influence of impact velocity on the crushing behavior of circular tubes when subjected to an axial impact. It is found that the first peak stress during an impact becomes higher with increase of impact velocity due to the inertia effects of radial direction. An empirical equation is proposed to evaluate the first peak stress. Also, it is found that the effect of impact velocity on the first peak stress depends on the strain hardening ratio E $_{\rm h}$ /E and the tube thickness-to radius ratio t/R.