Damage and permeability of composite laminates
TypeCommunications avec actes
This study focuses on the link between damage development and permeability evolution of composite laminates. By making use of an original device, measurement of the permeability of composite pipes under pressure and quantification of leak paths were conducted. Presented results show that very few (about one per 100 cm2) leak paths are sufficient to increase the permeability of several orders of magnitude, suggesting the existence of a preliminary phase characterized by a progressive development of a few cracks. Damage modelling and identification are proposed, allowing this phase to be taken into account. From this modelling coupled with a simplified representation of the crack network, prediction of leak path density is provided.
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Relationship between damage and permeability in liner-less composite tanks : experimental study at the lamina level LAEUFFER, Hortense; GUIOT, Brice; WAHL, Jean-Christophe; PERRY, Nicolas; LAVELLE, Florian; BOIS, Christophe (2016)The aim of this study is to provide a relevant description of damage growth and the resultant crack network to predict leaks in liner-less composite vessels. Tensile tests were carried out on three different laminates: ...
LAEUFFER, Hortense; ARBAOUI, Jamal; BOIS, Christophe; LAVELLE, Florian; PERRY, Nicolas; WAHL, Jean-Christophe (Elsiever, 2017)This paper presents an experimental setup for the measurement of permeability evolution induced by mechanical loading. The experiment consists in ressurizing a pipe-specimen. Internal pressure is used for both loading and ...
A model for the prediction of transverse crack and delamination density based on a strength and fracture mechanics probabilistic approach LAEUFFER, Hortense; GUIOT, Brice; WAHL, Jean-Christophe; PERRY, Nicolas; LAVELLE, Florian; BOIS, Christophe (2016)The aim of this study is to provide a relevant description of damage growth and the resultant network for leakage prediction in liner-less composite vessels. A damage meso-model built on strength and energy criteria as ...
Caractérisation et prédiction du réseau de fissures dans les composites stratifiés - Application aux réservoirs de lanceurs spatiaux sans liner LAEUFFER, Hortense; WAHL, Jean-Christophe; PERRY, Nicolas; BOIS, Christophe (2017)La conception de réservoirs composites sans liner pour les lanceurs spatiaux nécessite d’étudier la relation endommagement perméabilité dans les stratifiés pour proposer des solutions répondant à la fois aux critères ...
PERRY, Nicolas; WAHL, Jean-Christophe; BOIS, Christophe; PILATO, Aurélie; BERNARD, Alain (Elsevier, 2013)Hydrogen stock vessels add new product specifications because of higher pressure use. Today static application leads up to 700 bars. But pressure devices must resist, because of certification, at 3 times pressure (2100 ...