Closed form solutions for buckling and postbuckling analysis of imperfect laminated composite plates with piezoelectric actuators

2015 ◽  
Vol 72 ◽  
pp. 21-29 ◽  
Author(s):  
Mehdi Bohlooly ◽  
Babak Mirzavand
Keyword(s):  
Closed Form ◽  
Laminated Composite ◽  
Piezoelectric Actuators ◽  
Composite Plates ◽  
Laminated Composite Plates ◽  
Closed Form Solutions

scholarly journals On a bending problem of thick laminated composite plates

2002 ◽  
Vol 24 (1) ◽  
pp. 35-45
Author(s):  
Ngo Nhu Khoa ◽  
Ngo Ich Thinh
Keyword(s):  
Finite Element ◽  
Closed Form ◽  
Displacement Field ◽  
Degrees Of Freedom ◽  
Laminated Composite ◽  
Composite Plates ◽  
Layered Composite ◽  
Laminated Composite Plates ◽  
Quadrilateral Element ◽  
Transverse Loads

A high-order displacement field in quadrilateral element with nine nodes and twelve-degrees-of-freedom per node is developed for bending analysis of thick arbitrary layered composite plates under transverse loads. Results for plate deformations, internal stress-resultants and stresses for selected examples are shown to compare well with the closed-form and other finite element solutions.

Stability Analysis of Symmetric Laminated Composite Plates with Geometric Imperfections Under Longitudinal Temperature Gradient

2009 ◽  
Vol 25 (2) ◽  
pp. 161-165 ◽  
Author(s):  
A. Owhadi ◽  
B. Samsam Shariat
Keyword(s):  
Composite Plate ◽  
Plate Theory ◽  
Laminated Composite ◽  
Composite Plates ◽  
Thermal Buckling ◽  
Laminated Composite Plates ◽  
Closed Form Solutions ◽  
Longitudinal Temperature Gradient ◽  
Longitudinal Temperature ◽  
Geometrical Imperfections

AbstractThermal buckling behaviour of rectangular laminated composite plates with initial geometrical imperfections is investigated in this article. The equilibrium, stability, and compatibility equations of an imperfect composite plate are derived using the first order shear deformation plate theory. The plate is assumed to be under longitudinal temperature rise. Resulting equations are used to obtain the thermal buckling load of the composite plate in closed-form solutions. The effect of initial imperfections on buckling loads are discussed.

A Closed-Form Solution for Thermal Buckling of Cross-Ply Piezolaminated Plates

2016 ◽  
Vol 16 (03) ◽  
pp. 1450112 ◽  
Author(s):  
Mehdi Bohlooly ◽  
Babak Mirzavand
Keyword(s):  
Closed Form ◽  
Plate Theory ◽  
Ritz Method ◽  
Closed Form Solution ◽  
Laminated Composite ◽  
Composite Plates ◽  
Form Solution ◽  
Thermal Buckling ◽  
Closed Form Solutions ◽  
Piezoelectric Layers

A thermal buckling analysis is presented for simply-supported rectangular symmetric cross-ply laminated composite plates that are integrated with surface-mounted piezoelectric actuators and subjected to the combined action of thermal load and constant applied actuator voltage. The material properties of the composite and piezoelectric layers are assumed to be functions of temperature. Derivations of the equations are based on the classical laminated plate theory, using the von-Karman nonlinear kinematic relations. The Ritz method is adopted to obtain closed-form solutions for the critical buckling temperature. Numerical examples are presented to verify the proposed method. The effects of the applied actuator voltage, plate geometry and stacking sequence of laminates are investigated.

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