Automated Fatigue Life Assessment for Welded Cruciform Joint Considering Welding Residual Stress

Tak Kee Lee; Chae Whan Rim; Seung Ho Han; Jong Han Lee

doi:10.4028/www.scientific.net/KEM.297-300.2800

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High Temperature Performance of 316L-SS Joint Produced by Diffusion Bonding
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Automated Fatigue Life Assessment for Welded Cruciform Joint Considering Welding Residual Stress
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Characterization of Oxide Film Formed on Austenitic Stainless Steel by In Situ Micro Raman Spectroscopy
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Laser Surface Cladding of Al-Si Alloy
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 297-300Automated Fatigue Life Assessment for Welded...

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.

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Periodical:

Key Engineering Materials (Volumes 297-300)

Pages:

2800-2805

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.297-300.2800

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Online since:

November 2005

Authors:

Tak Kee Lee, Chae Whan Rim, Seung Ho Han, Jong Han Lee

Keywords:

Automation, Fatigue Life Assessment, System Integration Tool, Welded Cruciform Joint, Welding Residual Stress (WRS)

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References

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