Residual stress effects on fatigue crack growth in a Ti‐6Al‐4V friction stir weld |
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| Authors: | S PASTA A P REYNOLDS |
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| Affiliation: | 1. Dipartimento di Meccanica, Universita' di Palermo, Viale delle Scienze, 90128 Palermo, Italia;2. Department of Mechanical Engineering, University of South Carolina, 300 Main Street, Columbia, SC 29208, USA |
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| Abstract: | Recent studies have illustrated a predominant role of the residual stress on the fatigue crack growth in friction stir welded joints. In this study, the role of the residual stress on the propagation of fatigue cracks orthogonal to the weld direction in a friction stir welded Ti‐6Al‐4V joint was investigated. A numerical prediction of the fatigue crack growth rate in the presence of the residual stresses was carried out using AFGROW software; reasonable correspondence between the predictions and the experimental results were observed when the effects of residual stress were included in the simulation. |
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| Keywords: | fatigue crack growth propagation friction stir welding residual stress titanium alloy |
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