822 温度制御機能と熱応力最小機能をもつ傾斜機能平板の熱伝導率分布の探索

概要

論文の詳細を見る
In this paper, an inverse determination method of thermal conductivity is proposed in functionally graded material plates (FGM plates) with the functions of temperature control and thermal stress minimization. This method is based on piecewise nonlinear nonhomogeneous approximate method (PNNA method) developed to obtain accurate analytical solutions for the transient heat conduction problems in FGM plate with arbitrary variation in thermal conductivity through the thickness, and genetic algorithm (GA). The thermal conductivity in PSZ/SUS304 FGM plate is inversely determined. The ratio of the thermal stress to bending strength is estimated for both FGM plate with the thermal conductivity determined inversely and the ceramic-rich FGM plate suitable for the relaxation of thermal stress.
2003-08-05