Post-buckling of thick symmetric laminated plates under end-shortening and normal pressure using semi-energy finite strip method

2011 ◽  
Vol 89 (9-10) ◽  
pp. 724-732 ◽  
Author(s):  
H.R. Ovesy ◽  
H. Assaee ◽  
M. Hajikazemi
Keyword(s):  
Normal Pressure ◽  
Laminated Plates ◽  
Finite Strip ◽  
Strip Method ◽  
Finite Strip Method ◽  
Post Buckling

A Semi-Energy Finite Strip Method for Post-Buckling Analysis of Relatively Thick Anti-Symmetric Cross-Ply Laminates

2011 ◽  
Vol 471-472 ◽  
pp. 426-431 ◽  
Author(s):  
Mohammad Hajikazemi ◽  
Hamid Reza Ovesy ◽  
Mohammad Homayoun Sadr-Lahidjani
Keyword(s):  
Closed Form Solution ◽  
Shear Deformation Theory ◽  
Composite Plates ◽  
Form Solution ◽  
Laminated Plates ◽  
Plane Boundary ◽  
Finite Strip ◽  
Strip Method ◽  
Finite Strip Method ◽  
Post Buckling

In the current paper, a new semi-energy finite strip method is developed based on the concept of first order shear deformation theory (FSDT) in order to attempt the post-buckling solution for relatively thick composite plates subjected to uniform end-shortening. The main advantage of the semi-energy finite strip method (FSM) is that it is based on the closed form solution of von Karman’s compatibility equation in order to derive the analytical shape functions for the in-plane displacements fields. The developed finite strip method is applied to analyze the post buckling behavior of a relatively thick anti-symmetric cross-ply composite plate with clamped out-of-plane boundary conditions at its loaded ends. The results are discussed in detail and compared with those obtained from finite element method (FEM) of analysis. The study of the results has provided confidence in the validity and capability of the developed finite strip in handling post-buckling problem of relatively thick laminated plates.

Large Deflection Behavior of Composite Laminated Plates under End-Shortening and Normal Pressure Loading Using a Semi-Energy Finite Strip Method

2011 ◽  
Vol 471-472 ◽  
pp. 432-437
Author(s):  
Hamid Reza Ovesy ◽  
Mohammad Homayoun Sadr-Lahidjani ◽  
Mohammad Hajikazemi ◽  
Hassan Assaee
Keyword(s):  
Large Deflection ◽  
Closed Form Solution ◽  
Normal Pressure ◽  
Form Solution ◽  
Laminated Plates ◽  
Pressure Loading ◽  
Finite Strip ◽  
Composite Laminated Plates ◽  
Strip Method ◽  
Finite Strip Method

In this paper, the application of previously the semi energy finite strip method (FSM) for the non-linear post-buckling analysis of rectangular anti-symmetric laminates is extended to include the effects of normal pressure loading in addition to the progressive end-shortening. One of the main advantages of the semi-energy FSM is that it is based on the closed form solution of von Kármán’s compatibility equation. The developed finite strip method is applied to analyze the large deflection behavior of anti-symmetric angle ply composite laminated plates with simply supported boundary conditions at its loaded ends. To validate the results, they are compared with those obtained from finite element method (FEM) of analysis.

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