1216 傾斜機能材の剛性 : 捩り剛性について

概要

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Recently, composite materials such as Functionally Graded Materials (FGMs) have been developing as future materials. One of the FGMs is realized by mixing non-metal fine particles with metal particles, and sintering these together. Selecting the compound materials and changing their mixing ratio, any character of material can be obtained i.e. a new progressive material which has a required character of strength of flexibility and the chemical resistance according to actual applications. The mixing ratio is also possible to be varied over the cross section so as to satisfy the required function for actual use. However, the classical theory of elasticity is not suitable to evaluate the rigidity of a cross section over which the mechanical properties vary. Especially, well-known torsion theory was originally developed on the basis of constant mechanical properties. It is not applicable for the study of FGMs. The purpose of this paper is to develop the general theory of torsion applicable for the FGMs.
社団法人日本機械学会の論文
2002-03-14