Thick composite design for hydrogen vessels : a contribution to composite design method

Nicolas Perry (1) , Jean-Christophe Wahl (1) , Christophe Bois (1) , Aurélie Pilato (2) , Alain Bernard (3)

1 I2M - Institut de Mécanique et d'Ingénierie de Bordeaux
2 Messier Bugatti Dowty
3 IRCCyN - Institut de Recherche en Communications et en Cybernétique de Nantes

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 bars). Composite vessels give material-structure potential solutions. But designers face limits of knowledge due to actual good practices of thick composite structures use. This paper presents levels of knowledge enrichment for designers (multi-scale experiments and models), analysis of process influence on models improvement, and a discussion for an efficient testing strategy (meaning virtual testing in order to reduce the number of tests and their costs).

Mots clés: Composite; Design; Virtual testing

Domaines: Génie mécanique [physics.class-ph]; Génie mécanique [physics.class-ph]; Mécanique des matériaux [physics.class-ph]; Mécanique des matériaux [physics.class-ph]; Mécanique des structures [physics.class-ph]; Mécanique des structures [physics.class-ph]

Nicolas Perry, Jean-Christophe Wahl, Christophe Bois, Aurélie Pilato, Alain Bernard. Thick composite design for hydrogen vessels : a contribution to composite design method. CIRP Annals - Manufacturing Technology, 2013, 62 (1), pp.139-142. ⟨10.1016/j.cirp.2013.03.108⟩. ⟨hal-00948349⟩