Transient buckling analysis of liquid-storage tanks. Part I. Theory

W. K. Liu*, R. A. Uras

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

18 Scopus citations


In this paper, the governing equations which consider dynamic fluid-structure interaction, modal coupling in both axial and circumferential directions, and dynamic buckling are derived. The various pressure components acting on the shell wall due to a seismic event are also analyzed. The matrix equation of motion for liquid-filled shells is obtained through a Galerkin / Finite Element discretization procedure. The modal coupling among the various combinations of axial and circumferential modes are identified with a particular reference to the fluid-structure system under seismic excitation. Finally, the equations for the dynamic stability analysis of liquid-filled shells are presented.

Original languageEnglish (US)
Pages (from-to)35-40
Number of pages6
JournalAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
StatePublished - 1989
EventSeismic Engineering - 1989: Design, Analysis, Testing, and Qualification Methods - Honolulu, HI, USA
Duration: Jul 23 1989Jul 27 1989

ASJC Scopus subject areas

  • Mechanical Engineering


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