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Experimental analysis of CFRP laminates subjected to Compression After Impact: the role of impact-induced cracks in failure

Rivallant, Samuel and Bouvet, Christophe and Abi Abdallah, Elias and Broll, Bernhard and Barrau, Jean-Jacques Experimental analysis of CFRP laminates subjected to Compression After Impact: the role of impact-induced cracks in failure. (2014) Composite Structures, 111. 147-157. ISSN 0263-8223

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Official URL: http://dx.doi.org/10.1016/j.compstruct.2013.12.012

Abstract

This paper presents an experimental analysis of composite laminates subjected to low velocity impact and compression after impact (CAI). Two types of CFRP specimens are studied: a highly oriented laminate and a quasi-isotropic laminate. Impact energy is chosen to obtain a dent depth less than or around the BVID level. 3D digital image correlation is used to make detailed analyses of plates behaviour during CAI. Even if the damage morphologies are very different, the study shows that, in both cases, classical global buckling of the plate and local buckling of the delaminated sublaminates are accompanied by a crack on the impact face of the laminate. This crack appears in the highly damaged zone, under the impactor, and propagates in the direction transverse to the loading direction in a stable way. It is shown to play an essential role in the final failure of the laminate under compression.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com. The original PDF of the article can be found at Composite Structures website: http://www.sciencedirect.com/science/journal/02638223/111/supp/C
HAL Id:hal-00933459
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: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)
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Deposited By: Samuel RIVALLANT
Deposited On:20 Jan 2014 14:26

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