Research Article
Jun 1973
Strongly Curved Finite Element for Shell Analysis
Authors: John W. Leonard, AM.ASCE, and Chin-Tsang LiAuthor Affiliations
Publication: Journal of the Engineering Mechanics Division
Volume 99, Issue 3
Abstract
A new curved element has been introduced for the purpose of modeling the membrane and bending behavior of strongly curved shells with arbitrary contours. The particular method used herein allows slight slope discontinuities between elements but this disadvantage was offset by savings in computational time and storage requirements. Work is in progress to derive efficient methods to improve interelement slope and twist continuities. A typical derivation for the bending and membrane stiffness matrices of thin shells is given for the new element. Classical linear shell theory was used in the derivation and the shallowness assumption was not used. Numerical results for four contrasting problems: (1) membrane behavior of a sphere; (2) bending behavior of a complete cylinder with clamped ends; (3) nonlinear deployment of an ellipsoid segment; and (4) pressurization of a complete torus, were given to illustrate the potential of the proposed element.
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Published In
Journal of the Engineering Mechanics Division
Volume 99 • Issue 3 • June 1973
Pages: 515 - 535
Copyright
© 1973 American Society of Civil Engineers.
History
Published in print: Jun 1973
Published online: Feb 3, 2021
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John W. Leonard, AM.ASCE
Assoc. Prof. of Civ. Engrg., Illinois Inst. of Tech., Chicago, Ill.
Chin-Tsang Li
Engr., Stone and Webster Engrg. Corp., Boston, Mass.
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.