This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Fatigue Life Prediction of Spot-Welded Box-Section Beams under Repeated Torsion
Annotation ability available
Sector:
Language:
English
Abstract
Torsional fatigue tests of: spot-welded box-section beams were conducted to explain fatigue fracture phenomena, and a technique to predict fatigue life of spot welds in beams was developed. When a torsional moment acts on box-section beams that are hat beams with their flanges spot-welded to form closed sections, shearing force is transmitted through the spot welds. Based on theoretical analysis of stress distribution in the vicinity of spot welds and using strain values measured on the outer surface of spot welds, fatigue life of beams was successfully predicted. A technique to predict fatigue life of beams was developed by computing the load acting on spot welds in a beam and using fatigue strength data of a single-point spot-welded joint of the same load coponent.
Citation
Mabuchi, A., Niisawa, J., and Tomioka, N., "Fatigue Life Prediction of Spot-Welded Box-Section Beams under Repeated Torsion," SAE Technical Paper 860603, 1986, https://doi.org/10.4271/860603.Also In
References
- Niisawa et al. Stiffness Analysis Method of spot-Welded Beams and its Application the Society of Automotive Engineers of Japan (JSAE) 831037
- Tomioka et al. On Theoretical Analysis of Stress at Welding Flange of Spot Welded Box Section Member Under Torsion 1986 SAE International Congress 860602
- Oshima, Kitagawa Buckling Assisted Fatigue of Spot-Welded Box Beams under Bending 1986 SAE International Congress 860605