Author(s)

C. H. H. Ratsimba, S. B. Leen, I. R. McColl & E. J. Williams

Abstract

Effect of the coefficient of friction on the fatigue life of splines C. H. H. Ratsimba, S. B. Leen, I. R. McColl & E. J. Williams School of Mechanical, Materials, Manufacturing Engineering and Management, University of Nottingham, UK Abstract The fatigue behaviour of a representative high-performance aeroengine spline coupling is investigated under test conditions designed to simulate in-service conditions. The test load cycles consist of major cycle torque and axial load, simulating maximum thrust, combined with minor cycle rotating bending moment and fluctuating torque, simulating life-limiting conditions at take-off. The objective of the study is to develop understanding of the fatigue behaviour of the coupling over a range of loading conditions, including interaction between low-cycle fatigue, fretting fatigue and fretting wear. The effect of the coefficient of friction on the fatigue life is also investigated. This information is necessary for the development of fatigue and fretting fatigu

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