Underwater shock‐free surface–structure interaction | Zendy

Liu T. G. | Zendy; Khoo B. C. | Zendy; Yeo K. S. | Zendy; Wang C. | Zendy

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Underwater shock‐free surface–structure interaction

Author(s) -

Liu T. G.,

Khoo B. C.,

Yeo K. S.,

Wang C.

Publication year - 2003

Publication title -

international journal for numerical methods in engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.421

H-Index - 168

eISSN - 1097-0207

pISSN - 0029-5981

DOI - 10.1002/nme.791

Subject(s) - underwater explosion , underwater , free surface , shock (circulatory) , cavitation , mechanics , moment (physics) , surface (topology) , bubble , shock wave , torque , structural engineering , materials science , physics , classical mechanics , geology , engineering , geometry , mathematics , medicine , oceanography , thermodynamics

A recently developed numerical method has been employed to evaluate the influence of free surface on shock loading in a cylindrical underwater explosion carried out near to both a free surface and a cylindrical rigid structure. In the usual simulation of underwater shock–structure interaction, the shock loading tends to accelerate/move the (rigid) structure only in the resultant force direction. The presence of a free surface and explosion bubble suggests the existence of a reverse loading and provides an additional torque (rotational moment) on the loaded structure. The numerical results also demonstrate the possible existence of a cavitation zone/region in the immediate vicinity of the free surface due to the near‐surface underwater explosion. Copyright © 2003 John Wiley & Sons, Ltd.

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