Research Article
Oct 1971
Nonlinear Buckling Analysis of Sandwich Arches
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VIEW THE REPLYAuthors: Parviz Sharifi and Egor P. Popov, F.ASCEAuthor Affiliations
Publication: Journal of the Engineering Mechanics Division
Volume 97, Issue 5
Abstract
An incremental displacement formulation for the nonlinear finite element analysis of sandwich arches is presented. The formulation permits the analysis of geometrically nonlinear problems with finite rotations but infinitesimal strains. The finite element model employed is a straight beam-column type, and has a three-layered sandwich construction with similar facings. Homogeneous and isotropic material properties are assumed; and flexural, extensional and shear deformations of all three layers are considered. Therefore, it is possible to analyze homogeneous structures by simply assigning the same material properties to all three layers. The method is applicable to investigation of symmetrical and asymmetrical buckling and post-buckling behavior of arches. For the latter, an augmentation scheme has been used to give a positive definite stiffness matrix in the descending branch of the load-deflection curve. Results compare favorably with analytical solutions available in the literature.
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Published In
Journal of the Engineering Mechanics Division
Volume 97 • Issue 5 • October 1971
Pages: 1397 - 1412
Copyright
© 1971 American Society of Civil Engineers.
History
Published in print: Oct 1971
Published online: Feb 3, 2021
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Affiliations
Parviz Sharifi
Scientist Assoc., Research, Lockheed Missiles and Space Co., Sunni vale, Calif; formerly Asst. Research Engr., Univ. of California, Berke ley, Calif.
Egor P. Popov, F.ASCE
Prof. of Civ. Engrg., Univ. of California, Berkeley, Calif.
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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.