分析了基底/涂层结构的动态热应力,并对涂层的厚度进行了优化.采用Fourier变换法,在Laplace域内求解了问题的控制微分方程,然后利用界面连续条件、边界条件以及Laplace数值反演,得出了结构中的动态温度场和热应力场.数值算例表明,加热速度对结构中的最大热应力、破坏模式以及涂层厚度的优化值都会产生影响.
参考文献
| [1] | Thangjitham S, Choi H J. Thermal stresses in a multilayered anisotropic medium. Journal of Applied Mechanics, 1991, 58:1021～1027 |
| [2] | Tanigawa Y, Matsumoto M, Akat T. Optimization problem of material composition for nonhomogeneous plate to minimize thermal stresses when subjected to unsteady heat supply. Transactions of the Japan Society of Mechanical Engineers, Series A, 1996, 62(593):115～122 |
| [3] | Tanigawa Y, Akai T, Kawamura R, Oka N. Transient heat conduction and thermal stresses problems of a nonhomogeneous plate with temperature dependent material properties. Journal of Thermal Stresses, 1996, 19:77～102 |
| [4] | Lee Y -D, Erdogan F. Residual/thermal stress in FGM and laminated thermal barrier coatings. International Journal of Fracture, 1994/1995, 69:145～165 |
| [5] | Bao G, Wang L. Multiple cracking in functionally graded ceramic/metal coatings. International Journal of Solids and Structures, 1995, 32:2853～2871 |
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