A method for improving the hydrostatic pressure testing of the compressive strength of solid buoyancy materials used at full ocean depth

The current optimized synthesis methods for solid buoyancy materials used in manned submersibles at full ocean depth fail to meet the safety factor requirement of 1.5 specified in China Classification Society rules. To address this issue, this study proposes a novel method for enhancing the compress...

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Bibliographic Details
Published in:Ocean engineering 2023-10, Vol.286, p.115673, Article 115673
Main Authors: Wang, Jingze, Gao, Bo, Cui, Weicheng
Format: Article
Language:English
Subjects:
Compressive strength
Full ocean depth
Hollow glass beads
Safety factor
Solid buoyancy materials
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Summary:The current optimized synthesis methods for solid buoyancy materials used in manned submersibles at full ocean depth fail to meet the safety factor requirement of 1.5 specified in China Classification Society rules. To address this issue, this study proposes a novel method for enhancing the compressive strength and safety margin of such materials using hydrostatic pressure to screen hollow glass microspheres and eliminate those with low compressive strength. The as-prepared solid buoyancy material is free of surface cracks and has a water absorption rate of
ISSN:0029-8018
1873-5258
DOI:10.1016/j.oceaneng.2023.115673