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Damage tolerance of impacted curved panels

Article dans une revue avec comité de lecture
Auteur
BALLERE, Ludovic
LATAILLADE, Jean-Luc
CLOUTET, S
41918 Snecma Propulsion Solide [SPS]
ccGUILLAUMAT, Laurent
ccVIOT, Philippe

URI
http://hdl.handle.net/10985/7385
DOI
10.1016/j.ijimpeng.2008.03.004
Date
2008
Journal
International Journal of Impact Engineering

Résumé

The final aim of this study is to evaluate the influence of impact damage on the residual strength of carbon/epoxy vessels stressed by internal pressure. An intermediate stage determined the residual behaviour of pre-impacted curved panels loaded in tension. Curved panels were impacted, reproducing the damage types observed in impacted vessels filled with propellant. Delamination damage was assessed by ultrasonics and optical microscopy used to observe intra-laminar mechanisms. Tension after impact (TAI) tests quantified the residual behaviour. An experimental design was used as an alternative to the complex analytical modelling of dynamic damage mechanisms. With this original technique, empirical relationships were established, linking impact parameters to residual properties. The force to failure was found to vary in a bi-linear manner with impact energy. Below a specific level of impact energy corresponding to failure in 4/7 of the plies, there is no significant reduction in the residual strength. The composite Young’s modulus decreased linearly with impact energy.

Fichier(s) constituant cette publication

Nom:
DUMAS_intern.j.impct_lataillad ...
Taille:
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  • Institut de Mécanique et d’Ingénierie de Bordeaux (I2M)

Documents liés

Visualiser des documents liés par titre, auteur, créateur et sujet.

  • Scale effects on the response of composite structures under impact loading 
    Article dans une revue avec comité de lecture
    BALLERE, Ludovic; LATAILLADE, Jean-Luc; ccGUILLAUMAT, Laurent; ccVIOT, Philippe (Elsevier, 2008)
    For several years, composite materials have taken a significant part in the realization of structures designed for transport (aeronautical, nautical, automotive. . .). In order to qualify the behavior of such structures, ...
  • Réponse à l'impact de plaques composites épaisses préchargées en tension uniaxiale. 
    Communication avec acte
    GUILLAUD, Nicolas; FROUSTEY, Catherine; LATAILLADE, Jean-Luc; ccVIOT, Philippe; ccDAU, Frédéric (2013)
    This study concerns Carbon / epoxy composite plates. Three di erent thickness were investigated ([0°=45°=90°=45°]i)S for i = 2, 3 or 4 (5, 10 and 15mm thick). An instrumented falling-weight-impact test machine was used for ...
  • The influence of acrylate triblock copolymer embedded in matrix on composite structures’ responses to low-velocity impacts 
    Article dans une revue avec comité de lecture
    DENNEULIN, Sébastien; LEONARDI, Frédéric; LATAILLADE, Jean-Luc; ccVIOT, Philippe (Elsevier, 2012)
    In passive safety structures the use of composite materials has increased significantly recently due to their low specific mass and high energy absorption capacities. The purpose of this experimental study is to describe ...
  • Polypropylene foam behaviour under dynamic loadings: Strain rate, density and microstructure effects 
    Article dans une revue avec comité de lecture
    BOUIX, Rémy; LATAILLADE, Jean-Luc; ccVIOT, Philippe (Elsevier, 2009)
    Expanded polypropylene foams (EPP) can be used to absorb shock energy. The performance of these foams has to be studied as a function of several parameters such as density, microstructure and also the strain rate imposed ...
  • Perforation of aluminium alloy thin plates 
    Article dans une revue avec comité de lecture
    ANTOINAT, Léonard; ccKUBLER, Regis; BAROU, Jean-Luc; ccVIOT, Philippe; BARRALLIER, Laurent (Elsevier, 2015)
    Low velocity perforation of aeronautical aluminium alloy sheets 2024 T3 is studied in this paper. After a literature review on recent experiments and models of plate’s perforation, experimental results for 2 thicknesses ...

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