Paper Title:
Enhancement of Load-Carrying Capacity of Undermatching Butt Joints by Weld Shape Design
  Abstract

A new attempt is proposed to improve the load-carrying capacity of high strength steel undermatching butt welded joints by shape design. Based on the principle that reasonable geometric parameters designs of welded joints can regulate the distribution of stress and strain, reduce the stress concentration factors in low strength weld zone, the geometric parameters of undermatching butt joints, such as weld toe radius, height of excess weld metal and width of the cover passes are designed. A series of tests were completed to investigate the effect of weld shape design on the mechanical properties and security of undermatching butt joints. The results showed that the critical crack sizes of the 0.6~1.0 undermatching joints is greater than or equal to the one of base metal, the joints strengths approach to the tensile strength of base mental, and the fatigue strength is far higher than that of the as-welded equalmatching butt joints.

  Info
Periodical
Advanced Materials Research (Volumes 189-193)
Edited by
Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang
Pages
3279-3283
DOI
10.4028/www.scientific.net/AMR.189-193.3279
Citation
Z. L. Zhao, T. Wang, H. Y. Fang, J. G. Yang, "Enhancement of Load-Carrying Capacity of Undermatching Butt Joints by Weld Shape Design", Advanced Materials Research, Vols. 189-193, pp. 3279-3283, 2011
Online since
February 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: Bo Lin He, Xiao Dong Zhang
Chapter 7: Mechanics Engineering and Materials
Abstract:Stress concentration coefficient of welded joints has a crucial influence on mechanical properties of welded structures. Geometrical...
807
Authors: Jia Jie Wang, Zhi Bo Dong, Jing Qiang Zhang, Jian Guo Yang, Xue Song Liu, Hong Yuan Fang, Tie Gang
Chapter 9: Material Forming, Machining and Joining
Abstract:In this paper, cold bending properties of Q620-CF steel butt joints were analyzed based on the finite element method. Finite element analysis...
1308
Authors: Liang Chen Wu, Dong Po Wang
Chapter 4: Applied Materials: Study, Structure, and Technologies
Abstract:Ultrasonic fatigue performance test of 16Mn steel and welded joints are carried out by using ultrasonic fatigue test system devices developed...
392