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Low velocity impact modelling in laminate composite panels with discrete interface elements

Bouvet, Christophe and Castanié, Bruno and Bizeul, Matthieu and Barrau, Jean-Jacques Low velocity impact modelling in laminate composite panels with discrete interface elements. (2009) International Journal of Solids and Structures, 46 (14-15). 2809-2821. ISSN 0020-7683

(Document in English)

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Official URL: http://dx.doi.org/10.1016/j.ijsolstr.2009.03.010


A model enabling the detection of damages developing during a low velocity/low energy impact test on laminate composite panels has been elaborated. The ply model is composed of interface type elements to describe matrix cracks and volumic finite elements. This mesh device allows to respect the material orthotropy of the ply and accounts for the discontinuity experimentally observed. Afterwards delaminations are described with interfaces similar to the ones observed with matrix cracks and the coupling between these two damages are established. In the first step, simple stress criteria are used to drive these interface type elements in order to assess the relevance of model principle. Nevertheless, the well known problem of mesh sensitivity of these criteria prevents the use of this model for now as a predictive tool but rather as a qualitative tool. An experimental validation is carried out thanks to impact experimental tests performed by Aboissiere (2003) and a very good match has been found. However, this model could predictivelly be used and would allow to foresee an original method to detect delaminations during an experimental test. This modelling has been successfully tested experimentally and compared to a C-Scan ultrasonic investigation.

Item Type:Article
Additional Information:The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at http://dx.doi.org/10.1016/j.ijsolstr.2009.03.010
HAL Id:hal-01851855
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 Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Laboratory name:
Deposited On:05 Jan 2010 11:08

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