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Fully submerged composite cryogenic testing

Nicholls-Lee, R.F., Bostock, T.D. and Watt, P. (2011) Fully submerged composite cryogenic testing At 18th International Conference on Composite Materials, Korea, Republic of. 21 - 26 Aug 2011. 5 pp.

Record type: Conference or Workshop Item (Paper)


New methods for marine salvage and decommissioning of structures in the open sea are continually being sought in order to improve control and lower operational costs [1]. The concept design of a lightweight, cryogenic, marine, heavy lift, buoyancy system has been investigated [2]. The objective is to be able to raise or lower high mass objects controlled solely from a surface support vessel. The overall design concept and associated system development issues have been discussed previously. A number of the sub-systems in one complete buoyancy system involve considerable design and development, these include: structural design of the buoyancy chamber, mechanical systems to control and connection to the lift device, the cryogenic system itself and overall process control systems. The main area of concern in the design process is the composite cryogenic Dewar. This is required to operate not only at temperatures as low as -196oC but also to withstand pressure differences exceeding 35bar. As such the composite materials have to perform in a very aggressive environment. This work details a method for fully submersed composite cryogenic testing in order to qualify the materials for use in the Dewar of the buoyancy system.

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Published date: 24 August 2011
Venue - Dates: 18th International Conference on Composite Materials, Korea, Republic of, 2011-08-21 - 2011-08-26
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Organisations: Fluid Structure Interactions Group


Local EPrints ID: 197219
PURE UUID: 82149822-5802-4618-96b5-c927e88c3392

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Date deposited: 20 Sep 2011 14:29
Last modified: 18 Jul 2017 11:21

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Author: R.F. Nicholls-Lee
Author: T.D. Bostock
Author: P. Watt

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