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Failure analysis of single lap composite laminate bolted joints: comparison of experimental and numerical tests

Montagne, Benoît and Lachaud, Frédéric and Paroissien, Eric and Martini, Dominique and Congourdeau, Fabrice Failure analysis of single lap composite laminate bolted joints: comparison of experimental and numerical tests. (2020) Composite Structures, 238. 1-13. ISSN 0263-8223

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Official URL: https://doi.org/10.1016/j.compstruct.2020.111949

Abstract

Carbon fiber reinforced plastics (CFRP) are widely used in aircraft industry because of their high mechanical properties. However these properties considerably drop when composite materials are drilled and bolted. Thus, it is important to master the composite bolted joint behavior to avoid a structural failure. Experimental test on single lap bolted joints with various end distance have been led. The failed specimens are analysed thanks to XR computed tomography (XR-CT) and digital image correlation (DIC). The results are compared with a three dimensional finite element model involving a progressive damage model for the composite material. It is based on a progressive damage model of the composite material. The global behavior and the damages computed are in good agreement with the experimental results. But, contrary to the experimental observations, the computed damage scenarios are the same for all the tested end distance.

Item Type:Article
HAL Id:hal-02466277
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 - UT3 (FRANCE)
Other partners > Dassault Aviation (FRANCE)
Laboratory name:
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Deposited By: Benoit Montagne
Deposited On:04 Feb 2020 10:17

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