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Analysis of Fretting Crack Propagation Behavior with X-FEM Method

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Abstract:

Fretting fatigue cracks always initial at the tralling of contact region, because the stresses in the vicinity of the contact zone exhibit steep gradients. A fracture mechanics approach is usually used to estimate fretting fatigue propagation life. In this paper, extended finite element method combined with fracture mechanics is used to study fretting crack propagation behaviors. The computation results reveal that fretting crack nucleation is mainly decided by fretting, and the cycle bulk stress is the main reason for crack propagation. Also the X-FEM exhibits merits in fretting fatigue problem.

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Info:

Periodical:

Applied Mechanics and Materials (Volumes 157-158)

Pages:

1162-1166

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.157-158.1162

Citation:

Cite this paper

Online since:

February 2012

Authors:

Wen Li, Ri Dong Liao, Li Tao Liu, Zheng Xing Zuo

Keywords:

Crack Propagation, Fretting Fatigue, X-FEM

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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