Three-dimensional steady thermodynamic analysis for a double-layer plate with a local heat source and harmonic load
Three-dimensional steady thermodynamic analysis for a double-layer plate with a local heat source and harmonic load
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DOI：
10.1016/j.applthermaleng.2016.05.183
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发表时间：
2016-08
影响因子：
6.4
通讯作者：
Hao-Jie Jiang;Xiaogui Wang;L. Liang;H. Dai
中科院分区：
文献类型：
--
作者：
Hao-Jie Jiang;Xiaogui Wang;L. Liang;H. Dai
基于三维热传导理论、von Karman方程和层合板理论，研究了局部热源和谐波载荷作用下双层（涂层/FGM）板的三维稳态热力学行为。采用泊松法和分层法得到了精确的三维稳定温度场，然后分别在空间域和时间域采用有限差分法和Newmark法求解了双层板的控制方程。数值计算结果表明，功能梯度指数、选定涂层的导热系数、总层与涂层的厚度比、热源带宽度、结构的几何条件和边界条件对双层板的挠度和应力有较大的影响。
Based on the three-dimensional heat conduction theory, von Karman equation and laminated plate theory, the three-dimensional steady thermodynamic behavior for a double-layer (coating/FGM) plate subjected to a local heat source and harmonic load is investigated in this paper. The exact three-dimensional steady temperature field has been obtained previously by using Poisson method and layer wise method, and then governing equations of the double-layer plate are solved by applying the finite difference method and Newmark method in space domain and time domain, respectively. Numerical results denote that functionally graded index, selected coating layer’s heat conduction coefficient, thickness ratio between total layers and coating layer, width of heat source strip, geometrical condition and boundary condition of the structure have great influence on the deflection and stresses for the double-layer plate.