Thermo-electro-elasticity solution of functionally graded carbon nanotube reinforced composite cylindrical shell embedded in piezoelectric layers
Thermo-electro-elasticity solution of functionally graded carbon nanotube reinforced composite cylindrical shell embedded in piezoelectric layers
复制标题
DOI：
10.1016/j.compstruct.2017.04.027
复制
发表时间：
2017-08-01
影响因子：
6.3
通讯作者：
Zanoosi, A. A. Pasha
中科院分区：
文献类型：
--
作者：
Alibeigloo, A.;Zanoosi, A. A. Pasha
基于弹性力学理论，对内置压电传感器和驱动器的功能梯度碳纳米管增强复合材料（FG-CNTRC）圆柱壳在热-电载荷作用下进行了静力分析。假定碳纳米管增强混凝土圆柱壳的热弹性常数与温差无关。在这项研究中，均匀以及不同的情况下，功能梯度碳纳米管分布，沿着径向坐标的主机层被认为是。将所有量按轴向坐标展开，利用状态空间法沿着径向导出控制常微分方程组，然后进行解析求解，计算传感层的温度场、应力场、位移场和感应电压。本方法的有效性进行评估，通过比较得到的数值结果与文献中的结果。研究了碳纳米管体积分数、碳纳米管沿径向沿着分布方式、表面热、力、电边界条件对混杂FG-CNTRC圆柱壳静态性能的影响。(C)2017爱思唯尔有限公司版权所有
Based on theory of elasticity, static analysis of functionally graded carbon nanotube reinforced composite (FG-CNTRC) cylindrical shell imbedded in piezoelectric sensor and actuator layers under thermo-electromechanical load is carried out. Thermo-elastic constants of the CNTRC cylindrical shell is supposed to be independent of temperature difference. In this study, uniformly as well as different cases of functionally graded CNT distribution, along the radial coordinate of host layer is considered. Governing ordinary differential equations are derived by expanding all of quantities in term of axial coordinate and using state space technique along the radial direction and then they are solved analytically to compute temperature, stress and displacement fields as well as induced electric voltage in sensor layer. Validity of the present approach is assessed by comparing the obtained numerical results with the available results in literature. Influence of CNT volume fraction, kind of CNT distribution along the radial coordinate, surface thermal, mechanical and electrical boundary conditions on static behavior of hybrid FG-CNTRC cylindrical shell are evaluated. (C) 2017 Elsevier Ltd. All rights reserved.