Understanding crack growth in fuselage lap joints |
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| Authors: | R Jones L Molent S Pitt |
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| Institution: | aDepartment of Mechanical Engineering, Monash University, P.O. Box 31, Monash University, Victoria 3800, Australia;bAir Vehicles Division, Defence Science and Technology Organisation, 506 Lorimer Street, Fisherman’s Bend 3207, Australia |
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| Abstract: | The problem of multi-site damage and multiple interacting cracks is one experienced by many aircraft manufacturers and operators. This paper focuses on understanding the phenomena, and on developing a predictive capability that can form the engineering framework for maintaining continued airworthiness. To this end the present paper uses a simple formulation based on the Frost–Dugdale crack growth law to study the problem of cracking at fastener holes in fuselage lap joints and shows that the predicted crack growth history is in good agreement with both experimental results and with fleet data. |
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| Keywords: | Fuselage lap joints Crack growth Prediction |
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