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New design method of ceramics pressure housings for deep ocean applications

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2 Author(s)
Kenichi Asakawa ; JAMSTEC, 2-15 Natsushima-cyo, Yokosuka-shi, Kanagawa 237-0061 Japan ; Shinichi Takagawa

Ceramic is one of promising materials for pressure housings because ceramic has higher compressive strength than titan alloys. However, as the tensile strengths of ceramics are only a fraction of the compressive strength, common design methods for pressure housings of metals can not be directly applied to ceramic pressure housings. We will propose a new design method to coupling ceramic hemisphere and cylinder, and confirmed its validity with finite-element method analysis. We made a small-sized model of a pressure housing and examined that it can stand external 120 MPa water pressure.

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11-14 May 2009