Analytical stress intensity factor solutions for welds in lap-shear specimens of equal thickness under pinned and clamped loading conditions based on the beam bending theory are presented and examined. Finite element analyses are also employed to obtain the stress intensity factor solutions for welds in lap-shear specimens under both clamped and pinned loading conditions. The computational solutions are compared well with the analytical solutions. The results of the analytical and computational solutions indicate that the bending moments at the clamped edges reduce the mode I and II stress intensity factor solutions by about 7% to 10% for the given specimen geometry. The effects of the clamped grips depend on the ratio of the weld width to the specimen length. Comparisons of the stress intensity factor solutions suggest that the fatigue lives of the welds in lap-shear specimens under clamped loading conditions should be higher than those under pinned loading conditions.
Stress Intensity Factor Solutions for Welds in Lap-Shear Specimens under Clamped Loading Conditions
Sae Int. J. Mater. Manf
Sae International Journal of Materials and Manufacturing
SAE 2016 World Congress and Exhibition ; 2016
Sae International Journal of Materials and Manufacturing ; 9 , 3 ; 751-755
2016-04-05
5 pages
Aufsatz (Konferenz)
Englisch
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