Hygrothermally induced buckling analysis of elastically supported laminated composite plates with random system properties

The article presents hygrothermally induced buckling of geometrically linear laminated composite plates resting on two parameters Pasternak elastic foundation subjected to moisture and temperature-independent and -dependent material properties with random system properties. System properties such as...

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Bibliographic Details
Published in:Journal of composite materials 2012-10, Vol.46 (21), p.2711-2730
Main Authors: Kumar, Rajesh, Lal, Achchhe, Patil, HS, Singh, BN
Format: Article
Language:English
Subjects:
Applied sciences
Buckling
Composites
Computer simulation
Elastic constants
Exact sciences and technology
Forms of application and semi-finished materials
Foundations
Fundamental areas of phenomenology (including applications)
Mathematical models
Moisture
Monte Carlo methods
Physics
Plates
Polymer industry, paints, wood
Solid mechanics
Static elasticity (thermoelasticity...)
Structural and continuum mechanics
Technology of polymers
Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...)
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Summary:The article presents hygrothermally induced buckling of geometrically linear laminated composite plates resting on two parameters Pasternak elastic foundation subjected to moisture and temperature-independent and -dependent material properties with random system properties. System properties such as elastic moduli, shear moduli of the constituent materials, hygroscopic contraction coefficients, thermal expansion coefficients, and foundation stiffness parameters are modeled as independent basic random variables. A computationally efficient C 0 finite element method combined with Taylor series based mean-centered first-order perturbation technique via higher order shear deformation plate theory is used to solve the random eigenvalue problem. Typical numerical results for dimensional mean and coefficient of variance of hygrothermally induced buckling load of laminated composite plate subjected to uniform hygrothermal loadings are examined with uniform moisture concentration and temperature rise, plate thickness and aspect ratios, total number of plies, fiber orientations, elastic foundations, and different boundary conditions with random system properties. The numerical results obtained by the present solution approach are validated with those available in the literatures and independent Monte Carlo simulation.
ISSN:0021-9983
1530-793X
DOI:10.1177/0021998311431993