Asymmetric transient thermal stress of a functionally graded hollow cylinder with piecewise power law
Asymmetric transient thermal stress of a functionally graded hollow cylinder with piecewise power law
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DOI：
10.12989/sem.2013.47.3.421
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发表时间：
2013-08
影响因子：
2.2
通讯作者：
Y. Ootao;M. Ishihara
中科院分区：
文献类型：
--
作者：
Y. Ootao;M. Ishihara
本文研究了具有分段幂律的功能梯度空心圆柱体由于其表面不对称受热而引起的瞬态热弹性问题的理论处理。每一层的热和热弹性常数表示为径向坐标的幂函数，其值在界面上连续。得到了二维瞬态温度变化及平面应变状态下空心圆柱体热弹性响应的精确解。一些温度变化和应力分布的数值结果如图所示。进一步研究了功能分级对热应力的影响。
This paper is concerned with the theoretical treatment of transient thermoelastic problems involving a functionally graded hollow cylinder with piecewise power law due to asymmetrical heating from its surfaces. The thermal and thermoelastic constants of each layer are expressed as power functions of the radial coordinate, and their values continue on the interfaces. The exact solution for the two-dimensional temperature change in a transient state, and thermoelastic response of a hollow cylinder under the state of plane strain is obtained herein. Some numerical results for the temperature change and the stress distributions are shown in figures. Furthermore, the influence of the functional grading on the thermal stresses is investigated.