Stochastic Thermal Post Buckling Response of Elastically Supported Laminated Piezoelectric Composite Plate Using Micromechanical approach
In this paper, second order statistics of thermally induced post buckling response of elastically supported piezoelectric laminated composite plate using micromechanical approach is examined. A Co finite element has been used for deriving eigenvalue problem using higher order shear deformation theor...
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Published in | Curved and layered structures Vol. 2; no. 1 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
De Gruyter Open
01.01.2015
De Gruyter |
Subjects | |
Online Access | Get full text |
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Summary: | In this paper, second order statistics of thermally
induced post buckling response of elastically supported
piezoelectric laminated composite plate using micromechanical
approach is examined. A Co finite element has
been used for deriving eigenvalue problem using higher
order shear deformation theory (HSDT) with von-Karman
nonlinearity. The uncertain system properties such as material
properties of fiber and matrix of composite and
piezoelectric, fiber volume fraction, plate thickness, lamination
angle and foundation are modeled as random variables.
The temperature field considered to be uniform temperature
distributions through the plate thickness. A direct
iterative based nonlinear finite element method combined
with mean-centered second order perturbation technique
(SOPT) is used to find the mean and coefficient of
variance of the post buckling temperature. The effects of
volume fraction, fiber orientation, and length to thickness
ratio, aspect ratios, foundation parameters, position and
number of piezoelectric layers, amplitude and boundary
conditions with random system properties on the critical
temperature are analysed. It is found that small amount
of variations of uncertain system parameters of the composite
plate significantly affect the initial and post buckling
temperature of laminated composite plate. The results
have been validated with independent Monte Carlo simulation
(MCS) and those available in literature. |
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ISSN: | 2353-7396 2353-7396 |
DOI: | 10.1515/cls-2015-0019 |