Mixed-mode fatigue crack growth under biaxial loading |
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| Authors: | R.K. Pandey A.B. Patel |
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| Affiliation: | 1. Department of Applied Mechanics, Indian Institute of Technology, New Delhi-110016, India;2. Department of Mechanical Engineering, LD College of Engineering, Ahmedabad-380015, India |
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| Abstract: | Studies on crack growth in a panel with an inclined crack subjected to biaxial tensile fatigue loading are presented. The strain energy density factor approach is used to characterize the fatigue crack growth. The crack growth trajectory as a function of the initial crack angle and the biaxiality ratio is also predicted. The analysis is applied to 7075-T6 aluminium alloy to predict the dependence of crack growth rate on the crack angle. The effect of crack angle on the cyclic life of the component and on the cyclic life ratio is presented and discussed. |
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| Keywords: | fatigue mixed-mode crack growth angled cracks strain energy density factor crack growth prediction |
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