Paper Title:
Automated Fatigue Life Assessment for Welded Cruciform Joint Considering Welding Residual Stress
  Abstract

For a rational design of a welded joint, it is necessary to repeatedly assess the fatigue life of the joint with various dimensions and welding conditions. In this paper, an automated, repeatable/repetitive fatigue life assessment process for a welded cruciform joint was studied. The process consists of a structural analysis to obtain the stress distribution in the vicinity of the weldtoe, a thermal elasto-plastic analysis to determine the welding residual stress, and a fatigue life assessment based on the analyzed stress distribution and welding residual stress. With changes in design conditions including dimensions and/or welding heat input, the aforementioned tasks have to be performed. Using a commercial tool for system integration, automation of a repeated process for a welded cruciform joint based on 2D modeling was achieved. In this automated system, data exchanges between programs, regardless of whether they are commercial or in-house, work well, and parametric studies for optimal design can be performed.

  Info
Periodical
Key Engineering Materials (Volumes 297-300)
Edited by
Young-Jin Kim, Dong-Ho Bae and Yun-Jae Kim
Pages
2800-2805
DOI
10.4028/www.scientific.net/KEM.297-300.2800
Citation
T. K. Lee, C. W. Rim, S. H. Han, J. H. Lee, "Automated Fatigue Life Assessment for Welded Cruciform Joint Considering Welding Residual Stress ", Key Engineering Materials, Vols. 297-300, pp. 2800-2805, 2005
Online since
November 2005
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Price
$32.00
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