Dynamic behavior of a piezothermoelastic laminate considering the effect of transverse shear
Dynamic behavior of a piezothermoelastic laminate considering the effect of transverse shear
复制标题
考虑横向剪切效应的压热弹性层合板的动态行为
DOI：
10.1088/0964-1726/11/2/303
复制
发表时间：
2002
影响因子：
4.1
通讯作者：
N. Noda
中科院分区：
文献类型：
--
作者：
M. Ishihara;N. Noda
本文分析了考虑横向剪切影响的压电热弹性层合板的动力特性。分析模型是由纤维增强层和压电层组成的矩形层合板。该模型被假定为一个对称的正交铺设层压板与所有的边缘简支，并受到机械，热和电载荷随时间任意变化。基于一阶剪切变形理论分析了层合板的性能。得到了下列量的封闭解：（1）层合板的固有频率，（2）挠度的权函数，（3）载荷随时间任意变化引起的非定常挠度。此外，还通过数值算例研究了横向剪切对层合板动态行为的影响，以及施加在层合板上的电压如何减少机械或热载荷引起的挠度。
In this paper, we analyze the dynamic behavior of a piezothermoelastic laminate considering the effect of transverse shear. The analytical model is a rectangular laminate composed of fiber-reinforced laminae and piezoelectric layers. The model is assumed to be a symmetric cross-ply laminate with all edges simply supported and to be subjected to mechanical, thermal and electrical loads varying arbitrarily with time. The behavior of the laminate is analyzed based on first-order shear deformation theory. Closed solutions of the following quantities are obtained: (1) the natural frequencies of the laminate, (2) the weight function for the deflection and (3) the unsteady deflection due to loads varying arbitrarily with time. Moreover, numerical examples of the solutions are shown to examine the effect of transverse shear on the dynamic behavior of the laminate and how the voltage applied to the laminate decreases the deflection due to mechanical or thermal loads.