Hygrothermoelastic Buckling Response of Laminated Composite Plates with Random System Properties: Macromechanical and Micromechanical Model
Publication: Journal of Aerospace Engineering
Volume 28, Issue 5
Abstract
The paper deals with the effect of moisture and temperature on the buckling response of a laminated composite plate subjected to hygrothermomechanical loadings. Mechanical loading consists of uniaxial, biaxial, and shear. The distribution of temperature and moisture on the surface is considered to be uniform. The degradation in material properties due to moisture and temperature is taken into account using a micromechanical model. The mathematical formulation is based on higher order shear deformation theory and von Karman’s nonlinear kinematics. A finite-element method based on higher-order shear deformation plate theory is used for deriving the standard Eigenvalue problem. A Taylor series based mean-centered first-order perturbation technique is used to find out the second-order statistics of the hygrothermal buckling loads. The effects of temperature rise, moisture concentration, fiber-volume fraction, and plate parameters on buckling response of the plate are presented.
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Published In
Journal of Aerospace Engineering
Volume 28 • Issue 5 • September 2015
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Jun 3, 2011
Accepted: Apr 25, 2012
Published online: Apr 28, 2012
Discussion open until: Feb 23, 2015
Published in print: Sep 1, 2015
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