Estimating Fatigue Life of Carbon-Epoxy Composites: A Rapid Method coupling Thermo-Mechanical Analysis and Residual Strength - Université Bretagne Sud Access content directly
Journal Articles (Data Paper) Fatigue and Fracture of Engineering Materials and Structures Year : 2024

Estimating Fatigue Life of Carbon-Epoxy Composites: A Rapid Method coupling Thermo-Mechanical Analysis and Residual Strength

Abstract

The investigation of fatigue behavior typically in time-consuming tests, leading some re to explore ologies based on self-heating tests to reduce the process. For composite materials, the conventional ap in piecewise linear approximations of the self-heating curve and the stress transition between the first and second is arbitrarily associated with a fatigue lifetime equal to 106 cycles. This paper proposes a novel ology to address these sim- plifications. First, a non-linear vis tic is used to de the self-heating on the mechanisms estab in the literature, a link is proposed between the dissipation and the fatigue limit. The load leading to a significant con- tribution of non-linear mecha is associated with an infinite life time. It allows the identification of an S-N curve and prediction of fatigue behavior a min- imal number of tests. The comparison with fatigue results is satisfactory.
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Year Month Jours
Avant la publication
Saturday, August 10, 2024
Embargoed file
Saturday, August 10, 2024
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Dates and versions

hal-04450334 , version 1 (10-02-2024)

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Cite

Kilian Demilly, Jeanne Cavoit, Yann Marco, Gurvan Moreau, Guillaume Dolo, et al.. Estimating Fatigue Life of Carbon-Epoxy Composites: A Rapid Method coupling Thermo-Mechanical Analysis and Residual Strength. Fatigue and Fracture of Engineering Materials and Structures, 2024, 47 (6), pp.1856-1867. ⟨10.1111/ffe.14254⟩. ⟨hal-04450334⟩
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