Fatigue Life Variation of the Spot Welding by the Scatter Factors
Using nominal structural stress, which is a parameter for assessing the fatigue life of spot welded structures, the effect on fatigue life of changes in the spot weld location and variations in the plate thickness and nugget diameter were investigated. With an LP model of a spot welded structure, if the weld locations fluctuate in the flange width direction, the nominal structural stress changes significantly, but if the weld locations fluctuate in the pitch direction, the nominal structural stress is almost constant and the effect is small. Fluctuations of the weld location in the flange width direction result in significant fluctuations of the fatigue life. With the TS, the fatigue life fluctuates by ±22.8% when the plate thickness varies by ±5%, and if the nugget diameter varies by ±5% about 5 mm, the fatigue life fluctuates by ±10.7%.
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- Summary URL:
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/02878321
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Authors:
- Tomioka, N
- Handa, T
- Okabe, A
- Publication Date: 2012
Language
- English
- Japanese
Media Info
- Media Type: Web
- Features: References;
- Pagination: pp 969-974
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Serial:
- Transactions of Society of Automotive Engineers of Japan
- Volume: 43
- Issue Number: 4
- Publisher: Society of Automotive Engineers of Japan
- ISSN: 0287-8321
- EISSN: 1883-0811
- Serial URL: https://www.jstage.jst.go.jp/browse/jsaeronbun
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Publication flags:
Open Access (libre)
Subject/Index Terms
- TRT Terms: Fatigue (Mechanics); Scattering; Spot welding; Stresses; Structural stability (Mathematics)
- Subject Areas: Bridges and other structures; Design; Highways; I20: Design and Planning of Transport Infrastructure;
Filing Info
- Accession Number: 01505440
- Record Type: Publication
- Source Agency: Japan Science and Technology Agency (JST)
- Files: TRIS, JSTAGE
- Created Date: Jan 27 2014 11:20AM