Transient Thermal Stress Problem of a Functionally Graded Magneto-Electro-Thermoelastic Hollow Cylinder Due to a Uniform Surface Heating
Transient Thermal Stress Problem of a Functionally Graded Magneto-Electro-Thermoelastic Hollow Cylinder Due to a Uniform Surface Heating
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DOI：
10.1080/01495739.2012.674781
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发表时间：
2012-05
影响因子：
2.8
通讯作者：
Y. Ootao;M. Ishihara
中科院分区：
文献类型：
--
作者：
Y. Ootao;M. Ishihara
本文对磁-电-热弹性空心圆筒在均匀表面受热作用下的功能梯度进行了理论分析。采用层合复合模型作为理论逼近模型，分析了各向异性线性磁电热弹性材料构成的功能梯度空心圆柱体在平面应变状态下的瞬态热应力问题。为了说明这一点，我们对压电和磁致伸缩材料构成的功能梯度空心圆柱体进行了数值计算，并研究了其瞬态行为。研究了材料的非均匀性对应力、电势和磁势的影响，以及外加电势对热应力σθθ的影响。
This article is concerned with the theoretical analysis of the functionally graded magneto-electro-thermoelastic hollow cylinder due to uniform surface heating. We analyze the transient thermal stress problem for a functionally graded hollow cylinder constructed of the anisotropic and linear magneto-electro-thermoelastic materials using a laminated composite model as one of theoretical approximation under a plane strain state. As an illustration, we carry out numerical calculations for a functionally graded hollow cylinder constructed of piezoelectric and magnetostrictive materials and examined the behaviors in the transient state. We investigate the effects of the nonhomogeneity of material on the stresses, electric potential, and magnetic potential, and the effect of the applied electric potential on the thermal stress σθθ.