Study of the influence of imperfections on the dynamic stability of tanks

R. A. Uras*, W. K. Liu, Y. J. Chen

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations


The influence of geometrical imperfections on the dynamic stability of liquid-filled shells under horizontal ground excitation is studied. Some basic concepts in the large deformation and large deformation thin shell theory are recalled. The work done by inertial and internal forces are given in the Gaussian surface coordinate system. A general imperfection pattern in the circumferential direction is introduced. The emphasis is particularly dedicated to the analysis of the geometrical stiffness term. Different patterns are studied to explain the occurrence of additional instability regions.

Original languageEnglish (US)
Pages (from-to)47-54
Number of pages8
JournalAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
StatePublished - 1990
Event1990 Pressure Vessels and Piping Conference - Nashville, TN, USA
Duration: Jun 17 1990Jun 21 1990

ASJC Scopus subject areas

  • Mechanical Engineering


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