Toward Understanding the Failure Mechanism in Ceramic Vessels Under External Hydrostatic Pressure

Abstract The most common failure mode observed in legacy alumina ceramic pressure vessels (PVs) under high external hydrostatic pressure is spalling emanating from the ceramic ends under their metal joint rings. Investigative analyses have blamed excessive tensile stress. Physical evidence, however,...

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Bibliographic Details
Published in:Marine Technology Society journal 2021-09, Vol.55 (5), p.64-69
Main Author: Gordon, William H.
Format: Article
Language:English
Subjects:
Alumina Ceramic
Deep Submergence
Pressure Vessel
Spalling
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Summary:Abstract The most common failure mode observed in legacy alumina ceramic pressure vessels (PVs) under high external hydrostatic pressure is spalling emanating from the ceramic ends under their metal joint rings. Investigative analyses have blamed excessive tensile stress. Physical evidence, however, strongly suggests that other factors are also involved. This paper discusses legacy analysis shortcomings and offers an alternative failure mechanism, outlining what these other factors might be. The objective of this note is to stimulate a re-examination of ceramic PV failure modes, with a view to capitalizing on their significant advantages as a PV material.
ISSN:0025-3324
DOI:10.4031/MTSJ.55.5.11