Post-buckling analysis of cracked multilayered composite plates by pb-2 Rayleigh–Ritz method

2015 ◽  
Vol 132 ◽  
pp. 75-86 ◽  
Author(s):  
A. Milazzo ◽  
V. Oliveri
Keyword(s):  
Ritz Method ◽  
Composite Plates ◽  
Buckling Analysis ◽  
Multilayered Composite ◽  
Post Buckling

Thermal Post-Buckling Analysis of Functionally Graded Composite Plates with Nonlinear Aerodynamic Forces

2010 ◽  
Vol 123-125 ◽  
pp. 280-283
Author(s):  
Chang Yull Lee ◽  
Ji Hwan Kim
Keyword(s):  
Material Properties ◽  
Numerical Solutions ◽  
Virtual Work ◽  
Shear Deformation Theory ◽  
Composite Plates ◽  
Buckling Analysis ◽  
Functionally Graded ◽  
Governing Equations ◽  
Functionally Graded Composite ◽  
Post Buckling

The post-buckling of the functionally graded composite plate under thermal environment with aerodynamic loading is studied. The structural model has three layers with ceramic, FGM and metal, respectively. The outer layers of the sandwich plate are different homogeneous and isotropic material properties for ceramic and metal. Whereas the core is FGM layer, material properties vary continuously from one interface to the other in the thickness direction according to a simple power law distribution in terms of the volume fractions. Governing equations are derived by using the principle of virtual work and numerical solutions are solved through a finite element method. The first-order shear deformation theory and von-Karman strain-displacement relations are based to derive governing equations of the plate. Aerodynamic effects are dealt by adopting nonlinear third-order piston theory for structural and aerodynamic nonlinearity. The Newton-Raphson iterative method applied for solving the nonlinear equations of the thermal post-buckling analysis

Exploiting Symmetries for Efficient Post buckling Analysis of Composite Plates

AIAA Journal ◽  
1977 ◽  
Vol 15 (1) ◽  
pp. 24-32 ◽  
Author(s):  
Ahmed K. Noor ◽  
Michael D. Mathers ◽  
Melvin S. Anderson
Keyword(s):  
Composite Plates ◽  
Buckling Analysis ◽  
Post Buckling

Post-buckling Analysis of Multiply Delaminated Composite Plates

1997 ◽  
Vol 64 (4) ◽  
pp. 842-846 ◽  
Author(s):  
Haiying Huang ◽  
G. A. Kardomateas
Keyword(s):  
External Load ◽  
Perturbation Technique ◽  
Linear Equations ◽  
Composite Plates ◽  
Buckling Analysis ◽  
Internal Load ◽  
Nonlinear Beam ◽  
Buckling Behavior ◽  
Beam Equations ◽  
Post Buckling

This paper presents an elastic post-buckling analysis of an axially loaded beam-plate with two central across-the-width delaminations located at arbitrary depths. The analysis is based on the nonlinear beam equations, combined with the appropriate kinematic continuity and equilibrium conditions. A perturbation technique is employed, which transforms the nonlinear equations into a sequence of linear equations. An asymptotic solution of the post-buckling behavior of the plate is thus obtained. It is shown that with two delaminations, both the maximum deflection and the internal load of the first buckled (top) subplate increase as the external load increases. Of particular interest is the redistribution of load among subplates, which keeps the increase rate of internal load of the top buckled subplate much less than that of the external load. In other words, the load of the buckled subplate is close to the critical value even though the externally applied load is much larger than the critical load. In addition to the two-delamination configuration, a single delamination case is studied based on the present approach in order to verify the accuracy of the method. Also, a comparison with available finite element results is performed.

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