Investigation of Fatigue Crack Propagation in Spot-Welded Joints Based on Fracture Mechanics Approach
Source abstract
Abstract
In this paper, fatigue crack propagation life of resistance spot welds in tensile-shear specimens is investigated based on the calculation of stress intensity factors and J-integral using three-dimensional finite element method. For comparison, experimental works on 5083-O aluminum alloy spot-welded joints have been carried out to verify the numerical predictions of fatigue crack propagation of welded joints. A lot of analyses have been performed to obtain stress intensity factors and J-integral in tensile-shear specimens of spot-welded joints by using commercial software ANSYS. These gathered data have been formulated by using statistical software SPSS. The results of fatigue propagation life and predicted fatigue crack path revealed very good agreement with the experimental fatigue test data and photograph of cross-section of the fatigued spot-weld specimens.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Fatigue and fracture mechanics · Numerical methods in engineering · Advanced Welding Techniques Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (13)
Show source-provided references
1. McMachon, JC, Lawrence, FW, Fatigue Crack Initiation and Early Growth in Tensile and Shear Spot Weldments, Report 108, University of Illinois, Urbana, 1985
2. S. Zhang, Approximate Stress Intensity Factors and Notch Stresses for Common Spot-Welded Specimens, Weld. J., 1999, 78, p 173–179
3. L.P. Pook, Fracture Mechanics Analysis of the Fatigue Behavior of Spot Welds, Int. J. Fract., 1975, 11, p 173–17610.1007/BF00034726 ↗
4. L.P. Pook, Approximate Stress Intensity Factors Obtained from Simple Plate Bending Theory, Eng. Fract. Mech., 1979, 12, p 505–52210.1016/0013-7944(79)90093-6 ↗
5. S. Hassanifard, M. Zehsaz, K. Thogo, and T. Ohguma, The Prediction of Fatigue Crack Initiation Life in Spot Welds, Strain, 2009, 45, p 489–49710.1111/j.1475-1305.2008.00435.x ↗
6. M.H. Swellam, G. Banas, and F.V. Lawarence, A Fatigue Design Parameter for Spot Welds, Fatigue Fract. Eng. Mater. Struct., 1994, 17, p 1197–120410.1111/j.1460-2695.1994.tb01408.x ↗
7. S. Zhang, Stress Intensities at Spot Welds, Int. J. Fract., 1997, 88, p 167–18510.1023/A:1007461430066 ↗
8. N. Pan and S.D. Sheppard, Stress Intensity Factor in Spot Welds, Eng. Fract. Mech., 2003, 70, p 671–68410.1016/S0013-7944(02)00076-0 ↗
9. D. Radaj and S. Zhang, Simplified Formulae for Stress Intensity Factors of Spot Welds, Eng. Fract. Mech., 1991, 40, p 233–23610.1016/0013-7944(91)90142-N ↗
10. D. Radaj and S. Zhang, Stress Intensity Factors for Spot Welds Between Plates of Dissimilar Materials, Eng. Fract. Mech., 1992, 42, p 407–42610.1016/0013-7944(92)90163-9 ↗
11. N. Pan and S.D. Sheppard, Spot Welds Fatigue Life Prediction with Cyclic Strain Range, Int. J. Fatigue, 2002, 24, p 519–52810.1016/S0142-1123(01)00157-8 ↗
12. L.S. Maurice, E.N. Glenn, and C.M. Craig, Fatigue Design of Aluminum Components & Structures, McGraw-Hill, New York, 1996
13. S. Hassanifard, M. Zehsaz, and K. Thogo, The Effects of Electrode Force on the Mechanical Behaviour of Resistance Spot-Welded 5083-O Aluminium Alloy Joints, Strain, 2011, 47, p e196–e20410.1111/j.1475-1305.2008.00554.x ↗