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Method of Fatigue Life Estimation for Spot Welded Structures
Technical Paper
2002-01-2027
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In this paper, a new theory to obtain the nominal structural stress to the cross tension and the bending moment is described and, the method of the fatigue life estimation for the spot welding structure is proposed using this theory. Proposed method can do away with D value decision problem that is the current problem in D.Radaj's method for fatigue life estimation. Moreover, a nominal structural stress that is the fatigue strength evaluation parameter can be estimated in accuracy good, because the deformation around the nugget to which it pays attention in the spot welding structure is introduced into the analysis.
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Authors
Citation
Sawamura, T., Tomioka, N., Matsumoto, T., and Okabe, A., "Method of Fatigue Life Estimation for Spot Welded Structures," SAE Technical Paper 2002-01-2027, 2002, https://doi.org/10.4271/2002-01-2027.Also In
References
- Radaj D. 1990 “Design and Analysis of Fatigue Resistant Welded Structures” Abington Publishing 378
- Nakahara Y. Tomioka N. and others 2000 “Outline of Working-group Activity and Theoretical Solutions on Fatigue life Estimation for Spot-welded structure” JSAE Symposium No.06-00, “New proposals for Evaluation of Fatigue Durability of Automotive Body Structures” 5 12
- Takahashi M. Tomioka N. and others 2000 “Method of fatigue Life Estimation for Spot-Welded Structures by using CAE” JSAE Symposium No.06-00, “New proposal for Evaluation of Fatigue Durability of Automotive Body Structures” 19 25
- Committee on Fatigue Strength & Structural Reliability 1987 Spot welding fatigue strength data JSAE 185
- Nakahara Y. Takahashi M. Kawamoto A. Fujimoto M. Tomioka N. 2000 “Method of Fatigue Life Estimation for Spot-Welded Structures” SAE Paper 2000-01-0779