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High Pressure Research
An International Journal
Volume 30, 2010 - Issue 3
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Original Articles

Investigation of the design of a metal-lined fully wrapped composite vessel under high internal pressure

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Pages 428-437 | Received 17 Mar 2010, Accepted 15 Jun 2010, Published online: 26 Jul 2010
 

Abstract

In this study, a Type III composite pressure vessel (ISO 11439:2000) loaded with high internal pressure is investigated in terms of the effect of the orientation of the element coordinate system while simulating the continuous variation of the fibre angle, the effect of symmetric and non-symmetric composite wall stacking sequences, and lastly, a stacking sequence evaluation for reducing the cylindrical section-end cap transition region stress concentration. The research was performed using an Ansys® model with 2.9 l volume, 6061 T6 aluminium liner/Kevlar® 49-Epoxy vessel material, and a service internal pressure loading of 22 MPa. The results show that symmetric stacking sequences give higher burst pressures by up to 15%. Stacking sequence evaluations provided a further 7% pressure-carrying capacity as well as reduced stress concentration in the transition region. Finally, the Type III vessel under consideration provides a 45% lighter construction as compared with an all metal (Type I) vessel.

Acknowledgements

The authors are grateful to Universal Hassas Dokum Co. Ltd (http://www.hassasdokumtr.com) for the cooperation during this ongoing research.

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