Paper Title:
Effect of the Welding Heat Input on Residual Stresses in Butt-Weld of High-Speed Train
  Abstract

Abstract. This study used finite element software SYSWELD to analyze residual stresses in butt-weld between underframe and side wall of high-speed train car body. Based on the thermal-elastic-plastic theory, double ellipsoid heat source model is adopted to simulate the residual stresses under different heat input in the welded joints between underframe and side wall. The residual stresses at the surface of weld specimen were measured experimentally by using the hole-drilling method. The results of the finite element analysis were compared with experimentally measured data to evaluate the accuracy of the finite element modeling. Based on this study, a modelling procedure with reasonable accuracy was developed. The developed finite element modelling was used to study the effects of welding heat input on magnitude and distribution of welding residual stresses in butt-weld of high-speed train car body made of A6N01-T5. The results show the maximum residual stress exists in the welded seam and the adjacent-weld zone, and the residual stress value decreases gradually while the zone is farther from the weld center .Besides, With the increase of the welding heat input, the residual stress value increases gradually.

  Info
Periodical
Chapter
Chapter 2: Modeling, Analysis and Simulation of Manufacturing Processes
Edited by
Prasad Yarlagadda, Yun-Hae Kim, Zhijiu Ai and Xiaodong Zhang
Pages
255-261
DOI
10.4028/www.scientific.net/AMR.337.255
Citation
Z. Y. Zhu, P. Chen, H. M. Zhou, Y. H. Zhu, Y. H. Chen, H. Xu, A. Q. Tian, "Effect of the Welding Heat Input on Residual Stresses in Butt-Weld of High-Speed Train", Advanced Materials Research, Vol. 337, pp. 255-261, 2011
Online since
September 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Young Shin Lee, Young Jin Choi, Young Hwan Kang, Youn Bok Lee
Abstract:During fuel irradiation tests of material and fuel rods, all parts of cylindrical shells with multiple holes act as heat sources due to...
2589
Authors: Qi Zhang, La Dao Yang
Abstract:A model of heat transfer and solidification of continuous cast has been established, including boundary conditions in the mold and spray...
1431
Authors: Ge Ping Liu, Yu Hua Chen, Hong Yan Wu, Li Ming Ke
Abstract:ZL114A was joined by friction stir welding and liquid nitrogen was used to cool the welded joint during the welding process. The Influence of...
3335
Authors: Yan Jin, Zhi Bing Tian
Abstract:Because the dynamic soft reduction of continuous casting process is based on the computation of the solidification end point, using model to...
3936
Authors: Yan Yu, Feng Xue Wang, Jun Chen, Zhen Liu
Abstract:This paper takes the butt joint of axle case steel as research object, simulates the real-time three dimensional dynamics CO2...
2370