Active buckling control of smart composite plates - Finite-element analysis

被引：80

作者：

Chandrashekhara, K. ^{[1
]}

Bhatia, K. ^{[1
,2
]}

机构：

[1] Department of Mechanical and Aerospace Engineering and Engineering Mechanics, University of Missouri - Rolla, Rolla, MO 65401, United States

[2] Hartwick Professionals Inc., Troy, MI, United States

来源：

Smart Materials and Structures | 1993年 / 2卷 / 01期

关键词：

Critical buckling loads - Finite element solution - First order shear deformation plate theory - Laminated composite plates - Piezoelectric sensors and actuators - Proportional control - Smart composite plate - Uniaxial compressive loads;

D O I：

10.1088/0964-1726/2/1/005

中图分类号：

学科分类号：

摘要：

A finite-element model is developed for the active buckling control of laminated composite plates using piezoelectric materials. The finite-element model is based on the first-order shear deformation plate theory in conjunction with linear piezoelectric theory. The piezoelectric sensors and actuators can be surface bonded or embedded and can be either continuous or segmented. The model does not introduce voltage as an additional degree of freedom and takes into account the mass and stiffness of the piezoelectric patches. The dynamic buckling behavior of the laminated plate subjected to a linearly increasing uniaxial compressive load is investigated. The sensor output is used to determine the input to the actuator using a proportional control algorithm. The forces induced by the piezoelectric actuators under the applied voltage fields enhance the critical buckling load. Finite-element solutions are presented for composite plates with clamped and simply supported boundary conditions and the effectiveness of piezoelectric materials in enhancing the buckling loads is demonstrated. © 1993 IOP Publishing Ltd.

引用

页码：31 / 39