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Fatigue Strength of Box-Section Beams under Torsion-Laser-Welded vs. Spot-Welded
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 04, 2002 by SAE International in United States
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Box-section beams in the automotive structures are usually produced by spot welding. How about the change in the fatigue strength if they are manufactured by laser welding? This paper will give a simple formula to estimate the fatigue strength ratio of the two kinds of box-section beams. The formula is obtained from a fracture mechanics analysis of the two beams and confirmed by the fatigue test data from the literature.
CitationZhang, S., "Fatigue Strength of Box-Section Beams under Torsion-Laser-Welded vs. Spot-Welded," SAE Technical Paper 2002-01-0583, 2002, https://doi.org/10.4271/2002-01-0583.
- Zhang, S. 1997 Stress intensities at spot welds International Journal of Fracture 88 167 185
- Zhang, S. 1999 Approximate stress intensity factors and notch stresses for common spot-welded specimens Welding Journal 78 173 179
- Zhang, S. 1999 Recovery of notch stress and stress intensity factors in finite element modeling of spot welds NAFEMS World Congress on Effective Engineering Analysis Newport, Rhode Island 1103 1114
- Zhang, S. 1999 Stress intensities derived from stresses around a spot weld International Journal of Fracture 99 239 257
- Zhang, S. 2001 Recent developments in analysis and testing of spot welds SAE Paper 2001-01-0432
- Tomioka, N. Niisawa, J. Mabuchi, A. 1986 On theoretical analysis of stress at welding flange of spot welded box section member under torsion SAE Paper 860602
- Sih, G. C. 1973 Handbook of Stress Intensity Factors Publ Lehigh University
- Sonsino, C. M. Müller, F. Radaj, D. 1994 Fügen im Leichtbau DVM--Bericht 120 63 86
- Mabuchi, A. Niisawa, J. Tomioka, N. 1986 Fatigue life prediction of spot-welded box-section beams under repeated torsion SAE Paper 860603