Vibration and dynamic buckling control of imperfect hybrid FGM plates with temperature-dependent material properties subjected to thermo-electro-mechanical loading conditions
- 30 April 2009
- journal article
- Published by Elsevier BV in Composite Structures
- Vol. 88 (2), 240-252
- https://doi.org/10.1016/j.compstruct.2008.04.003
Abstract
Dynamic buckling analysis of FGM plates has not been accomplished so far. In the present paper, vibration and dynamic buckling of FGM rectangular plates with surface-bonded or embedded piezoelectric sensors and actuators subjected to thermo-electro-mechanical loading conditions are investigated. A finite element formulation based on a higher-order shear deformation theory is developed. Both initial geometric imperfections of the plate and temperature-dependency of the material properties are taken into account. Dynamic buckling of plates already pre-stressed by other forms of loading conditions is assumed to occur under suddenly applied thermal or mechanical loads. A nine-node second order Lagrangian element, an efficient numerical algorithm for solving the resulted highly non-linear governing equations, and an instability criterion already proposed by the author are employed. A simple negative velocity feedback control is used to actively control the dynamic response of the plate. Results show that generally, initial geometric imperfections lead to an increased fundamental bending natural frequency and decreased buckling loads. Furthermore, buckling mitigation due to utilizing integrated piezoelectric sensors and actuators is mainly achieved in extremely high gain values. Therefore, the piezoelectricity effect on the buckling load is small in applicable voltages. It is also noticed that the temperature-dependency and initial geometric imperfections remarkably affect the buckling loads.Keywords
This publication has 35 references indexed in Scilit:
- Vibration and dynamic response of functionally graded plates with piezoelectric actuators in thermal environmentsJournal of Sound and Vibration, 2006
- Large amplitude vibration of thermo-electro-mechanically stressed FGM laminated platesComputer Methods in Applied Mechanics and Engineering, 2003
- The modelling and design of smart structures using functionally graded materials and piezoelectrical sensor/actuator patchesSmart Materials and Structures, 2003
- Finite element piezothermoelasticity analysis and the active control of FGM plates with integrated piezoelectric sensors and actuatorsComputational Mechanics, 2003
- Active control of FGM plates subjected to a temperature gradient: Modelling via finite element method based on FSDTInternational Journal for Numerical Methods in Engineering, 2001
- Active control of FGM plates with integrated piezoelectric sensors and actuatorsInternational Journal of Solids and Structures, 2001
- Three-Dimensional Solutions of Smart Functionally Graded PlatesJournal of Applied Mechanics, 2000
- THERMOMECHANICAL ANALYSIS OF FUNCTIONALLY GRADED CYLINDERS AND PLATESJournal of Thermal Stresses, 1998
- Some Basic Thermoelastic Problems for Nonhomogeneous Structural MaterialsApplied Mechanics Reviews, 1995
- Thermal Stresses in Materials with Temperature-Dependent PropertiesApplied Mechanics Reviews, 1991