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PROCEEDINGS OF THE TWELFTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY
Edited by: B.H.V. Topping and P. Iványi
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
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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