A new method for the quantification of nucleation of fretting fatigue cracks using asymptotic contact solutions |
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Authors: | David A. Hills Daniele Dini |
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Affiliation: | aUniversity of Oxford, Department of Engineering Science, Parks Road, Oxford OX1 3PJ, UK |
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Abstract: | This paper introduces a recently developed family of local, self-contained contact solutions which can be used to compare rigorously the states of stress in the microslip region of a range of contacts. This provides (a) a rigorous means of designing experimental fretting fatigue test geometries to match those in complex prototypes rigorously, and (b) gives the possibility of developing a reliable database of generalszed stress intensity thresholds for design against crack nucleation. |
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Keywords: | Local solution Asymptotic methods Crack nucleation criterion |
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