Fretting fatigue predictions in a complex coupling
| Autor: | J. Ding, I.R. McColl, E.J. Williams, Wei Siang Sum, Sean B. Leen, R. Sabesan |
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| Rok vydání: | 2007 |
| Předmět: |
Engineering
business.industry Mechanical Engineering Fretting Slip (materials science) Structural engineering Industrial and Manufacturing Engineering Finite element method Spline (mathematics) Amplitude Mechanics of Materials Modeling and Simulation Bending moment Torque Axial load General Materials Science business |
| Zdroj: | International Journal of Fatigue. 29:1229-1244 |
| ISSN: | 0142-1123 |
| Popis: | The fretting fatigue behaviour of a representative high-performance aero-engine spline coupling is studied under complex non-symmetrical and variable amplitude loads, consisting of major cycle torque and axial load, combined with minor cycle rotating bending moment and fluctuating torque. The objective of the study is to evaluate the effectiveness of finite element based predictions of: (i) a widely-used fretting fatigue damage parameter, namely a critical-plane Smith–Watson–Topper (SWT) parameter, and (ii) the fretting-fatigue-specific Ruiz criterion, for complex coupling geometries. The approach employs a high-resolution finite element model with localised mesh refinement to achieve detailed fretting fatigue results while maintaining an acceptable node count. The predictions are compared with corresponding laboratory test results and observations. Methods for overcoming the shortcomings of the SWT parameter, in the context of fretting fatigue, are discussed and a modified SWT parameter, which includes the effect of slip, is presented. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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