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Nonlinear transient analysis of smart laminated composite plate integrated with PVDF sensor and AFC actuator

机译：集成有PVDF传感器和AFC执行器的智能层压复合板的非线性瞬态分析

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In this article, the geometrically nonlinear transient response of the smart laminated composite plate is investigated under the coupled electromechanical load. The plate has been modeled using the higher-order kinematic model in conjunction with Green-Lagrange nonlinear strains. The electric potential across the sensor/actuator layer is modeled as the quadratic function of the thickness coordinate. The domain is discretized with the help of a nine noded isoparametric quadrilateral element with thirteen degrees of freedom per node. The desired transient responses are obtained using the direct iterative method in association with Newmark's time integration scheme. In order to achieve distributed actuator and the sensor behaviour the active fibre composite and Polyvinylidene fluoride fibre reinforced composite are utilized along the poled fibre direction and through the thickness, respectively in this present investigation. In this analysis, two types of configurations of the sensor and actuator ( collocated and non-collocated) are considered to compute the active stiffening responses. The convergence and the validity of the present numerical model have been checked. Finally, the effects of various geometrical parameters along with the sensor and the actuator arrangements on the nonlinear transient responses of the laminated composite plate are examined by solving various numerical examples. (C) 2016 Elsevier Ltd. All rights reserved.
机译：在本文中，研究了在耦合机电载荷下智能层压复合板的几何非线性瞬态响应。使用高阶运动学模型结合格林-拉格朗日非线性应变对板进行了建模。跨越传感器/执行器层的电势被建模为厚度坐标的二次函数。借助每个节点具有13个自由度的九节点等参四边形元素来离散该域。使用直接迭代方法结合Newmark的时间积分方案可以获得所需的瞬态响应。为了实现分布式执行器和传感器性能，在本研究中，分别沿极化纤维方向和整个厚度利用了活性纤维复合材料和聚偏二氟乙烯纤维增强的复合材料。在此分析中，考虑了传感器和执行器的两种类型的配置（并置和非并置）来计算主动加劲响应。已经检验了当前数值模型的收敛性和有效性。最后，通过求解各种数值示例，研究了各种几何参数以及传感器和执行器布置对层压复合板非线性瞬态响应的影响。 （C）2016 Elsevier Ltd.保留所有权利。

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