Plastic Buckling of Plates with Edge Frictional Shear Effects
Publication: Journal of Engineering Mechanics
Volume 113, Issue 7
Abstract
It is a well‐known paradox in the theory of plastic plate buckling that the discredited deformation theory of plasticity predicts the buckling stress well, whereas the generally accepted incremental theory predicts a buckling stress which is too high. The paradox is traced to the fact that prior analytical approaches neglect the effect of friction acting on the loaded edges during tests. The method of analysis makes use of finite element techniques based on incremental theory. Numerical computations were carried out on a digital computer. The shear stresses introduced by the edge frictional have the effect of substantially lowering the buckling stress. The numerical results compare well with the experimental data obtained by Pride and Heimerl (1948). It is indicated that the inclusion of frictional effects is crucial to obtain realistic results for plate buckling in the plastic range.
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Information & Authors
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Published In
Journal of Engineering Mechanics
Volume 113 • Issue 7 • July 1987
Pages: 953 - 964
Copyright
Copyright © 1987 ASCE.
History
Published online: Jul 1, 1987
Published in print: Jul 1987
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