Thermal Stresses in the Semi-Infinite Body with an Oblique Boundary to the Functionally Graded Direction
Thermal Stresses in the Semi-Infinite Body with an Oblique Boundary to the Functionally Graded Direction
复制标题
具有与功能梯度方向倾斜边界的半无限体中的热应力
DOI：
10.1299/jmmp.1.1238
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
N. Noda
中科院分区：
文献类型：
--
作者：
M. Ohmichi;N. Noda
从理论上研究了斜向功能梯度对半无限体热应力的影响。采用变量分离法和应力函数法得到了严格解。假设材料性能是沿功能梯度方向位置的指数函数。考虑两种边界条件，一种是受热面上的规定热流密度，另一种是同一表面上的规定温度。对ZrO2 /Ti-6Al-4V功能梯度材料（fgm）进行了数值计算。用不同斜角值的数值图说明了温度和热应力的数值结果。在给定温度边界条件下的数值计算结果表明，当斜角在0°~ 45°范围内变化时，温度曲线向富陶瓷侧倾斜，压应力随斜角的增大而减小。
The effect of oblique functional gradation to thermal stresses in the semi-infinite body is studied theoretically. The rigorous solution is derived by the use of the variable separation and the stress function method. The material properties are assumed to be exponential functions of the position along the functionally graded direction. Two types of boundary conditions are considered, one is the prescribed heat flux on the heating surface and the other is the prescribed temperature on the same surface. The numerical calculations are carried out for ZrO2 /Ti-6Al-4V functionally graded materials (FGMs). The numerical results of temperature and thermal stresses are illustrated with figures for different values of an oblique angle. Numerical results for the prescribed temperature boundary condition show that the temperature curve leans to the ceramic-rich side and the compressive stress decreases with increasing the oblique angle when the oblique angle varies from 0° to 45°.
影响因子：
6.3
作者：
Shen, Hui-Shen;Noda, N.
通讯作者：
Noda, N.