Thermal stability of functionally graded sandwich plates using a simple shear deformation theory

- Journal title : Structural Engineering and Mechanics
- Volume 58, Issue 3, 2016, pp.397-422
- Publisher : Techno-Press
- DOI : 10.12989/sem.2016.58.3.397

Title & Authors

Thermal stability of functionally graded sandwich plates using a simple shear deformation theory

Bouderba, Bachir; Houari, Mohammed Sid Ahmed; Tounsi, Abdelouahed; Mahmoud, S.R.;

Bouderba, Bachir; Houari, Mohammed Sid Ahmed; Tounsi, Abdelouahed; Mahmoud, S.R.;

Abstract

In the present work, a simple first-order shear deformation theory is developed and validated for a variety of numerical examples of the thermal buckling response of functionally graded sandwich plates with various boundary conditions. Contrary to the conventional first-order shear deformation theory, the present first-order shear deformation theory involves only four unknowns and has strong similarities with the classical plate theory in many aspects such as governing equations of motion, and stress resultant expressions. Material properties and thermal expansion coefficient of the sandwich plate faces are assumed to be graded in the thickness direction according to a simple power-law distribution in terms of the volume fractions of the constituents. The core layer is still homogeneous and made of an isotropic material. The thermal loads are considered as uniform, linear and non-linear temperature rises within the thickness direction. The results reveal that the volume fraction index, loading type and functionally graded layers thickness have significant influence on the thermal buckling of functionally graded sandwich plates. Moreover, numerical results prove that the present simple first-order shear deformation theory can achieve the same accuracy of the existing conventional first-order shear deformation theory which has more number of unknowns.

Keywords

plate theory;thermal buckling;functionally graded plate;sandwich plate;volume fraction index;

Language

English

Cited by

1.

Thermal post-buckling behavior of imperfect temperature-dependent sandwich FGM plates resting on Pasternak elastic foundation,;;;;

2.

A new simple three-unknown sinusoidal shear deformation theory for functionally graded plates,;;;;

3.

Bending analysis of FGM plates using a sinusoidal shear deformation theory,;;;

4.

A refined theory with stretching effect for the flexure analysis of laminated composite plates,;;;

5.

A novel four variable refined plate theory for bending, buckling, and vibration of functionally graded plates,;;;;

6.

A novel four variable refined plate theory for laminated composite plates,;;;

7.

A new 3-unknowns non-polynomial plate theory for buckling and vibration of functionally graded sandwich plate,;;;

8.

An analytical approach for buckling of functionally graded plates,;;

9.

Hygrothermal effects on buckling of composite shell-experimental and FEM results,;;;;

10.

An analytical method for free vibration analysis of functionally graded sandwich beams,;;;;

11.

A simple hyperbolic shear deformation theory for vibration analysis of thick functionally graded rectangular plates resting on elastic foundations,;;;

12.

Buckling analysis of isotropic and orthotropic plates using a novel four variable refined plate theory,;;;

13.

On thermal stability of plates with functionally graded coefficient of thermal expansion,;;;;

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