Mixed laminate theory and finite element for smart piezoelectric composite shell structures
Mixed laminate theory and finite element for smart piezoelectric composite shell structures
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DOI：
10.2514/2.264
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发表时间：
1997-08-01
期刊：
影响因子：
2.5
通讯作者：
Saravanos, DA
中科院分区：
文献类型：
--
作者：
Saravanos, DA
在曲线坐标下，提出了一种新的压电壳混合层压理论，该理论结合了位移的单层假设和电势的分层表示。描述了曲线压电层合板的耦合控制方程，随后发展了结构力学，并建立了用于含压电层合板自适应复合壳结构静动力分析的八节点有限元。对采用连续压电致动器的圆柱形压电复合材料层合板和采用连续或离散压电致动器和传感器的悬臂壳的数值结果表明了该方法的优点，并量化了曲率对压电壳机电响应的影响。
Mechanics for the analysis of laminated composite shells with piezoelectric actuators and sensors are presented, A new mixed laminate theory for piezoelectric shells is developed in curvilinear coordinates that combines single-layer assumptions for the displacements and a layerwise representation for the electric potential. The resultant coupled governing equations for curvilinear piezoelectric laminates are described, Structural mechanics are subsequently developed and an eight-node finite element is formulated for the static and dynamic analysis of adaptive composite shell structures of general laminations containing piezoelectric layers. Evaluations of the method and comparisons with reported results were performed, Numerical results for cylindrical laminated piezoelectric composite panels with continuous piezoceramic actuators and cantilever shells with continuous or discrete piezoelectric actuators and sensors illustrate the advantages of the method and quantify the effects of curvature on the electromechanical response of piezoelectric shells.