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Bearing fatigue of composite laminates: Damage monitoring and fatigue life prediction

Sola, Cyril and Castanié, Bruno and Michel, Laurent and Lachaud, Frédéric and Delabie, Arnaud and Mermoz, Emmanuel Bearing fatigue of composite laminates: Damage monitoring and fatigue life prediction. (2017) Composites Part B: Engineering, 110. 487-496. ISSN 1359-8368

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Official URL: https://doi.org/10.1016/j.compositesb.2016.11.031

Abstract

In hybrid composite/metallic structures, loads can be transmitted from one part to the other through localized contact pressures, i.e., bearing. Such structures may be rotating structures, which can accumulate as many as 109 load cycles during their service life. Designing safe hybrid rotating structures thus requires a sound understanding of how composite joints degrade under bearing fatigue. Pin-bearing fatigue tests were run under load-control. Damage mechanisms were investigated using computed tomography, and the pin displacement was closely monitored thanks to a green-LED micrometer. Building upon the gathered experimental evidences, several damage indicators were then analysed. In particular, hysteresis losses were found to give interesting insights into the fatigue phenomenon, suggesting the existence of a fatigue limit in the very high cycle fatigue (VHCF) regime.

Item Type:Article
HAL Id:hal-02160873
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Ecole nationale supérieure des Mines d'Albi-Carmaux - IMT Mines Albi (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Aéroport International de Marseille-Provence (FRANCE)
Laboratory name:
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Deposited By: Laurent MICHEL
Deposited On:20 Jun 2019 08:54

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