Nonlinear Buckling Simulations of Imperfect Shell Domes by Mixed Finite Elements
Publication: Journal of Engineering Mechanics
Volume 129, Issue 7
Abstract
A degenerated nine-node-shell element and interpolation formulation for stress resultant vectors are used. Fifty-two selected experiments previously performed by the second author on the elastic buckling of clamped thin-walled shallow spherical shells under external pressure are compared with the present finite element analytical results. The measured geometric initial imperfection distributions are incorporated in the finite element analytical procedure. The good agreements between the numerical simulations and the experimental measurements of not only maximum loads but also displacement distributions are obtained.
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Published In
Journal of Engineering Mechanics
Volume 129 • Issue 7 • July 2003
Pages: 707 - 714
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Nov 17, 2000
Accepted: Jul 9, 2002
Published online: Jun 13, 2003
Published in print: Jul 2003
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