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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 106
Edited by: B.H.V. Topping and P. Iványi
Paper 22

Buckling and Post-Buckling Behaviour of Shear-Deformable Composite Laminated Plates using an Exact Finite Strip Method

H.R. Ovesy1, E. Zia-Dehkordi1 and S.A.M. Ghannadpour2

1Department of Aerospace Engineering, Centre of Excellence in Computational Aerospace Engineering, Amirkabir University of Technology, Tehran, Iran
2Aerospace Engineering Department, Faculty of New Technologies and Engineering, Shahid Beheshti University G.C., Tehran, Iran

Full Bibliographic Reference for this paper
H.R. Ovesy, E. Zia-Dehkordi, S.A.M. Ghannadpour, "Buckling and Post-Buckling Behaviour of Shear-Deformable Composite Laminated Plates using an Exact Finite Strip Method", in B.H.V. Topping, P. Iványi, (Editors), "Proceedings of the Twelfth International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 22, 2014. doi:10.4203/ccp.106.22
Keywords: high accuracy strip, moderately thick plates, post-buckling stage, first order shear deformation plate theory, Von-Karman's equations, full-analytical finite strip method..

A high accuracy finite strip for the buckling and post-buckling analysis of moderately thick composite plates is presented in this paper by using first order shear deformation theory. The method presented, which is designated by the name full-analytical finite strip method, provides an efficient and extremely accurate buckling solution in which the Von-Karman's equilibrium set of equations is solved exactly, and the out-of-plane mode shapes and critical loads are obtained. In the post-buckling stage, the Von-Karman's compatibility equation is solved exactly with the assumption that the deflected form after buckling is a combination of buckling modes obtained (single or multiple mode shapes). The principle of minimum potential energy is invoked to solve for the unknown coefficients in the assumed out-of-plane deflection and rotations functions.

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