Vieille, Benoit and Casado, Victor Manuel and Bouvet, Christophe Comparative study on the impact behavior and damage tolerance of woven carbon fiber reinforced thermoplastic– and thermosetting– composites. (2012) In: ECCM15 - 15th European conference on composite materials, 24-28 June 2012, Venice, Italy.
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The purpose of this study is to compare the response of TS-based (epoxy) and TP-based (PPS or PEEK) laminates under low velocity impacts. In order to assess the development of internal damage caused by the different impact energies, non-destructive examinations were done. Impact tests created pyramidal-shaped damage at the center of the specimen, extensive delamination and fiber breakages inside laminates, as well as inter laminar and intra-ply damage. CAI tests showed that PEEK-based composites display the best performance, and the compressive residual strengths of C/PPS and C/Epoxy are the lowest for every impact energy. It turns out that the three materials display a rather similar behavior at increasing impact energy as delaminated areas are larger in C/Epoxy and C/PEEK, whereas the PPS matrix toughness contributes to a less extended delaminated area. One reason for the disappointing residual strength of TP-based composites may be the constraint on the development of the plastic deformation zone in the resin rich area between the woven-plies and at the fiber bundles crimp, preventing the matrix toughness to give to the laminates a better damage tolerance.
|Item Type:||Conference or Workshop Item (Paper)|
|Audience (conference):||International conference proceedings|
|Institution:|| Université de Toulouse > Ecole des Mines d'Albi-Carmaux - EMAC|
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA
Other partners > Institut National des Sciences Appliquées de Rouen - INSA (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE
Other partners > Université de Rouen - UR (FRANCE)
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
|Deposited By:||christophe bouvet|
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