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Article Dans Une Revue Tribology International Année : 2014

Introduction of a reverse simulation approach to identify the fatigue stress intensity factor crack arrest threshold from fretting cracking experiments

Résumé

The aim of this study was to estimate the ΔKth crack arrest stress intensity factor related to the crack arrest condition of a material subjected to partial slip fretting loadings, by coupled experimental and numerical simulation. The study focuses on a plane (Al-alloy)/cylinder (TA6V) interface. Fretting tests were performed for each configuration to obtain the crack length as a function of the number of fretting cycles, in order to establish the crack length related to crack arrest condition. Using a reverse FEM analysis of crack arrest fretting experiments, the thresholds ΔK th(fr) are extracted. Two 2196-T8 and 2196-UA aluminium alloys were compared, while the short crack arrest versus the crack length evolutions were formalized using a Kitagawa Takahashi formalism.
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hal-01808025 , version 1 (06-02-2023)

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Alix De Pannemaecker, Siegfried Fouvry, Jean-Yves Buffiere. Introduction of a reverse simulation approach to identify the fatigue stress intensity factor crack arrest threshold from fretting cracking experiments. Tribology International, 2014, 76, pp.122-132. ⟨10.1016/j.triboint.2013.10.016⟩. ⟨hal-01808025⟩
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