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Advances in Aircraft and Spacecraft Science Volume 4, Number 1, January 2017 , pages 1-19 DOI: https://doi.org/10.12989/aas.2016.4.1.001 |
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A methodology for assessing fatigue life of a countersunk riveted lap joint |
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Gang Li, Guillaume Renaud, Min Liao, Takao Okada and Shigeru Machida
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| Abstract | ||
| Fatigue life prediction of a multi-row countersunk riveted lap joint was performed numerically. The stress and strain conditions in a highly stressed substructure of the joint were analysed using a global/local finite element (FE) model coupling approach. After validation of the FE models using experimental strain measurements, the stress/strain condition in the local three-dimensional (3D) FE model was simulated under a fatigue loading condition. This local model involved multiple load cases with nonlinearity in material properties, geometric deformation, and contact boundary conditions. The resulting stresses and strains were used in the Smith-Watson-Topper (SWT) strain life equation to assess the fatigue | ||
| Key Words | ||
| fatigue life; global/local FE model coupling; crack growth; riveted lap joint; the Smith- Watson-Topper (SWT) equation | ||
| Address | ||
| Gang Li, Guillaume Renaud and Min Liao: Aerospace, National Research Council, Canada Takao Okada and Shigeru Machida: Aeronautical Technology Directorate, Japan Aerospace Exploration Agency, Japan | ||
