0000000001264205
AUTHOR
David H. Allen
A simplified FE2 model of fibre failure and its consequences applied to the design of composite pressure vessels
International audience
Damage accumulation and life prediction in carbon fibre composite pressure vessels
Composites and nanostructures
Determination of lifetime probabilities of carbon fibre composite plates and pressure vessels for hydrogen storage
International audience; It is shown that an analogy can be made between the failure of unidirectional carbon fibre reinforced epoxy plates and filament wound carbon fibre composite pressure vessels and that their strengths and failure probabilities can be determined. Fibres in filament wound composite structures are placed on geodesic paths around the mandrel, which becomes the liner; so that when the structure is pressurised the fibres are only subjected to tensile forces, as in a unidirectional composite. Multiscale modelling reveals that composite failure is controlled by fibre breakage and that clustering of fibre breaks determines ultimate reliability of the structure. Time dependent r…