任意の不均質性と加熱を有する傾斜機能平板の非定常熱応力の解析解　ファジィ推論による物性値を用いた場合

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タイトル別名
  • An Analytical Solution for Transient Thermal Stress in a Functionally Gradient Plate with Arbitrary Nonhomogeneities and Thermal Boundary Conditions. Material Properties Determined by Fuzzy Inference.
  • ニンイ ノ フキンシツセイ ト カネツ オ ユウスル ケイシャ キノウ ヘイバ

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説明

Functionally gradient material (FGM) is one of the typical nonhomogeneous materials. In this paper, an analytical solution based on a kind of integral transform developed by Vodicka for the composite regions is presented for the transient heat conduction problem in a nonhomogeneous plate with arbitrary nonhomogeneous thermophysical properties. The material properties of SiC/Al FGM with the uncertainty of distinction between the matrix phase and the filler phase in an intermediate composite and the uncertain change in the microstructure of the filler phase are estimated based on Mamdani's method of fuzzy inference. The associated transient thermal stresses under the various thermal boundary conditions are analysed with the use of the closed- form solution derived by one of the authors for a nonhomogeneous plate with arbitrary variations in mechanical properties through the thickness, and the composition suitable for the reduction of thermal stress is discussed.

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