Study of Dynamic Responses of T-joint Steel Tubular under High Temperature and Impact Loading
This paper presents finite element approach for analyzing T-joint of steel tubular subjected to high temperature and impact loads. The models adopt shell element and cover the effects of temperature and rate-dependent strain-rate. The results may be different from static load to blast load because of the enhanced yield strength due to high strain-rate. The influence of velocity- pressure and temperature are considered of the dynamic responses of T-joints under impact loads. By analyzing the joint subject to blast and temperature form 20℃ to 700℃. It is proposed that the carrying capacity of joint is decreased with the temperature increasing. At the same time the carrying capacity would improve while considering the influence of high-strain rate. Furthermore, the effect of stress strengthen is more obviously at high temperature.
T-joints Stress-strain relationship Temperature softening Strain hardening
Meng Jin Jincheng Zhao Jing Chang Minglu Liu
Department of Civil Engineering, Shanghai Jiaotong University, Shanghai, China, 200240 Shandong Jiaotong University jinan, China, 250023
国际会议
The First Anniversary of Wenchuan Earthquake(纪念汶川地震一周年国际学术会议)
成都
英文
203-207
2009-05-10（万方平台首次上网日期，不代表论文的发表时间）