scholarly journals Geometric Non-Linear Analysis of Composite Laminated Plates Using Higher Order Finite Strip Element

2012 ◽  
Vol 225 ◽  
pp. 165-171
Author(s):  
Rizal Zahari ◽  
Faizal Mustapha ◽  
Dayang Laila Abd Majid ◽  
Azmin Shakrine M. Rafie ◽  
Thariq Hameed Sultan
Keyword(s):  
Composite Plates ◽  
Linear Analysis ◽  
Higher Order ◽  
Laminated Plates ◽  
Plate Bending ◽  
Finite Strip ◽  
Strip Method ◽  
Finite Strip Method ◽  
Tangential Stiffness ◽  
Non Linear

A finite strip method for geometric non-linear static analysis based on the tangential stiffness matrix has been developed using the new concept of polynomial finite strip elements, with Reissner (higher order shear deformable element) plate-bending theory for composite plates. A finite strip analysis programming package, which is capable of performing non-linear analysis for composite flat panels, has also been developed with Reissner plate bending element. Good agreement with the finite element results has been observed through various test cases, confirming the accuracy and reliability of the new developed finite strip method.

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.

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