Effect of thickness on the buckling strength of egg-shaped pressure hulls

This paper is devoted to a further investigation on a range of externally pressurised egg-shaped pressure hulls. Hulls are 2.561 m long, 1.767 m wide, and have uniform wall thickness varying from 10 to 80 mm with 5 mm increment. Series of numerical simulations and laboratory scale experiments are performed to systematically study the buckling of egg-shaped pressure hulls, along with the effect of wall thickness on the buckling. Volume and mass equivalent spherical pressure hulls are also proposed to make a like-for-like comparison with egg-shaped pressure hulls. The results show that egg-shaped pressure hulls seem to be applicable to deep sea manned/unmanned submersibles, especially to full ocean depth ones (11,000 m). Also, deep pressure hulls tend to buckle in an elastic–plastic regime, which is strongly affected by the wall thickness.

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    • © 2018 Informa UK Limited, trading as Taylor & Francis Group. Abstract reprinted with permission of Taylor & Francis.
  • Authors:
    • Zhang, Jian
    • Wang, Minglu
    • Cui, Weicheng
    • Wang, Fang
    • Hua, Zhengdao
    • Tang, Wenxian
  • Publication Date: 2018-5

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  • English

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  • Accession Number: 01667713
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 7 2018 3:01PM