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Civil-Comp Proceedings
ISSN 1759-3433 CCP: 75
PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY Edited by: B.H.V. Topping and Z. Bittnar
Paper 140
Buckling of Long, Sandwich Cylindrical Shells under Pressure G.A. Kardomateas+ and G.J. Simitses*
+Georgia Institute of Technology, Atlanta, Georgia, United States of America
Full Bibliographic Reference for this paper
G.A. Kardomateas, G.J. Simitses, "Buckling of Long, Sandwich Cylindrical Shells under Pressure", in B.H.V. Topping, Z. Bittnar, (Editors), "Proceedings of the Sixth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 140, 2002. doi:10.4203/ccp.75.140
Keywords: sandwich construction, buckling analysis, long cylindrical shells.
Summary
Sandwich construction has become increasingly very popular in the design of future
transportation industry, especially aircraft. The paper deals with the theoretical
prediction of buckling loads for sandwich long cylindrical shells with laminated
facings and foam core. The loading is a uniform hydrostatic pressure, which means
that the loading remains normal to the deflected surface during the buckling process.
Several fiber materials are used in the laminated facings. The materials are:
Boron/Epoxy, Graphite/Epoxy and Kevlar/Epoxy laminates with 0
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Four values of the ratio of mean radius to total thickness, When computing critical pressure by the three-dimensional elasticity solution, the results are slightly higher than those computed by the procedure of [1]. Both procedures will be presented with details in the full paper, as well as the numerical results and the discussion of the findings. As far as the authors know, there are no analyses and no results published in the literature with regard to buckling of pressure loaded sandwich shells. Although the results are for very long shells (ring behavior), the study will be next extended to finite length cylinders, similar to [2].
AcknowledgementThe financial support of the Office of Naval Research, Ship Structures and Systems, S & T Division, Grants N00014-90-J-1995 and N00014-0010323, and the interest and encouragement of the Grant Monitor, Dr. Y.D.S. Rajapakse, are both gratefully acknowledged.References
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