Composite cylinders for deep sea applications, an overview

Type Article
Date 2016-12
Language English
Author(s) Davies PeterORCID1, Choqueuse Dominique1, Bigourdan Benoit1, Chauchot Pierre1
Affiliation(s) 1 : IFREMER, Marine Struct Lab, Ctr Bretagne, F-29280 Plouzane, France.
Source Journal Of Pressure Vessel Technology-transactions Of The Asme (0094-9930) (Asme), 2016-12 , Vol. 138 , N. 6 , P. PVT-16-1028 (1-8)
DOI 10.1115/1.4033942
WOS© Times Cited 35
Abstract In order to develop the knowledge base necessary to design deep sea pressure vessels it is essential to understand the full chain from design and manufacturing through NDT and characterization to long term behavior under hydrostatic pressure. This paper describes results from European and national research programs focusing on the use of composites for underwater applications over the last 20 years. Initial tests on small glass/epoxy cylinders were followed by large demonstration projects on carbon/epoxy cylinders with implosion pressures of up to 600 bar, corresponding to 6000 meter depth. Numerical modeling has enabled end closures design to be optimized for test performance. Thin and thick wall cylinders have been tested under quasi-static, and long term loading. Both thermosetting and thermoplastic matrix composites have been tested to failure, and the influence of defects and impact damage on implosion pressure has been studied. These deep sea exploitation and exploration studies were performed for oceanographic, military and offshore applications, and extensive data are available. The aim of this paper is to indicate existing results, particularly from European projects, in order to avoid costly repetition.
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