scholarly journals A high-fidelity first-order reliability analysis for shear deformable laminated composite plates

2014 ◽  
Vol 115 ◽  
pp. 12-28 ◽  
Author(s):  
P.D. Gosling ◽  
Faimun ◽  
O. Polit
Keyword(s):  
Reliability Analysis ◽  
Laminated Composite ◽  
Composite Plates ◽  
High Fidelity ◽  
Laminated Composite Plates ◽  
First Order ◽  
Shear Deformable

A Simple Higher-Order Theory for Laminated Composite Plates

1984 ◽  
Vol 51 (4) ◽  
pp. 745-752 ◽  
Author(s):  
J. N. Reddy
Keyword(s):  
Shear Deformation ◽  
Deformation Theory ◽  
Shear Deformation Theory ◽  
Laminated Composite ◽  
Composite Plates ◽  
Order Theory ◽  
Higher Order ◽  
Laminated Composite Plates ◽  
First Order ◽  
First Order Theory

A higher-order shear deformation theory of laminated composite plates is developed. The theory contains the same dependent unknowns as in the first-order shear deformation theory of Whitney and Pagano [6], but accounts for parabolic distribution of the transverse shear strains through the thickness of the plate. Exact closed-form solutions of symmetric cross-ply laminates are obtained and the results are compared with three-dimensional elasticity solutions and first-order shear deformation theory solutions. The present theory predicts the deflections and stresses more accurately when compared to the first-order theory.

A novel first-order shear deformation theory for laminated composite plates

2014 ◽  
Vol 17 (3) ◽  
pp. 321-338 ◽  
Author(s):  
Mohamed Sadoune ◽  
Abdelouahed Tounsi ◽  
Mohammed Sid Ahmed Houari ◽  
El Abbes Adda Bedia
Keyword(s):  
Shear Deformation ◽  
Deformation Theory ◽  
Shear Deformation Theory ◽  
Laminated Composite ◽  
Composite Plates ◽  
Laminated Composite Plates ◽  
First Order

scholarly journals First Order Shear Deformation Theory access for the stress research of CNT/Polymer Laminated Composite Plates

2019 ◽  
Vol 8 (6) ◽  
pp. 3736-3740
Keyword(s):  
Carbon Nanotube ◽  
Shear Deformation ◽  
Polymer Composite ◽  
Deformation Theory ◽  
Shear Deformation Theory ◽  
Laminated Composite ◽  
Composite Plates ◽  
Theory Approach ◽  
Laminated Composite Plates ◽  
First Order

In the design of structural elements like shells, beams, and plates the analysis of stresses is one of the primary and most important considerations. The intention of the current research is to perform a study on stress behavior of laminated polymer composite plates reinforced with carbon nanotube(CNT). A theoretical first order shear deformation theory approach is executed on simply supported laminated composite plates subjected to uniformly distributed loads to study the effect of shear deformation on in-plane and transverse stresses. The numerical results are presented for symmetrical, eight layered polymer composite reinforced with Carbon Nanotube to explore the effect of various parameters like stacking sequence, the side-to-thickness ratio on stresses. The effect of carbon nanotube volume fraction and carbon nanotube radius is also investigated on stress distribution of composite plates. This study on stress analysis is conducted on plates principally to observe the structural suitability of nanocomposites.

Improved Secant Matrices for the Postbuckling Analysis of Thin Composite Plates

2003 ◽  
Vol 03 (03) ◽  
pp. 355-375 ◽  
Author(s):  
S. Arul Jayachandran ◽  
S. Gopalakrishnan ◽  
R. Narayanan
Keyword(s):  
Shear Deformation Theory ◽  
Laminated Composite ◽  
Initial Imperfection ◽  
Composite Plates ◽  
Shear Stiffness ◽  
Laminated Composite Plates ◽  
Postbuckling Behavior ◽  
Initial Imperfections ◽  
First Order ◽  
Total Displacement

To study the postbuckling behavior of imperfect laminated composite plates, improved incremental or secant matrices are presented in this paper using what is called additional displacement formulation (ADF). These secant matrices are derived using the Marguerre's shell theory and they can be used in combination with any thin plate finite element. The advantage of the present formulation is that it involves no numerical approximation in forming the initial imperfection matrices as opposed to earlier secant matrices published in the literature using total displacement formulation. With the addition of shear stiffness matrix and little modification, the present incremental matrices could be extended to model postbuckling behavior of plates using the first-order shear deformation theory. The secant matrices presented in this study are shown to be very accurate in tracing the postbuckling behavior of thin isotropic and laminated composite plates with general initial imperfections.

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