618 傾斜機能材料の製造時の熱応力緩和解析 : 相変態に適した冷却過程

概要

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Phase transformation of PSZ in PSZ/SUS304 FGM plate is used for the purpose of the reduction of thermal stress during cooling process after high temperature synthesis. The optimization of cooling process of the FGM plate is necessary for the effective use of the phase transformation together with the volume change. In this research, an analytical solution is derived for the transient heat conduction problem during an arbitrary cooling process in the FGM plate with arbitrary thermal nonhomogeneities by the Piecewise-Linear Nonhomogeneous Approximation Method developed by Sugano et al. and the convolution theorem of Laplace transformation. An expression of the thermal stress taken into account the phase transformation is obtained from an extension of thermal stress expression in the FGM plate with arbitrary mechanical nonhomogeneities through the thickness derived by Sugano.
2000-07-31