Determination of Inter‐ and Free‐Boundary Stresses in Plate Analysis
Publication: Journal of Engineering Mechanics
Volume 119, Issue 3
Abstract
The conventional finite‐element method shows its weakness in determining the stress distributions along free‐ and interboundaries for plate (facet shell) analysis. This is because the chosen element displacement and rotation functions do not implicitly satisfy the conditions that prevail at the boundaries. A procedure has been proposed to modify the conventional finite‐element method so as to allow the elastic stresses along the free‐ and interboundaries of plates to be determined with improved accuracy. The results obtained by this modified method are compared with both an experimental and a traditional finite‐element solution. The comparison shows that the modified solution is in better agreement with the experimental test data as compared with the traditional solution. The computation time required to perform the additional calculations for determining free‐ and interboundary stresses with improved accuracy is only a small fraction of that required for the complete finite‐element analysis.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 119 • Issue 3 • March 1993
Pages: 427 - 438
Copyright
Copyright © 1993 American Society of Civil Engineers.
History
Received: Apr 8, 1992
Published online: Mar 1, 1993
Published in print: Mar 1993
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