傾斜機能材料の強度に関するモデル実験 : リング圧縮試験による解析

概要

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The effects of a gradient distribution of components on the deformation and fracture of functionally gradient materials (FGM) in the corundum/plaster model system were examined as a function of the volume fraction of corundum powder and the No. times of gravity (i.e., multiples of gravity). The radial crushing strength of the FGM was measured under the combined conditions for casted rings with three different volume fractions and three different No. times of gravity. The distribution patterns of stress and strain in FGM rings were analyzed by the conventional curved beam theory considering the change of elastic modulus. The brittle fracture was initiated from the inner surface of the ring on the load action line independent of the distribution of corundum powder. The variation of strength with the gradient distribution of corundum powder and with the centrifugal force was also studied.
一般社団法人日本機械学会の論文
1991-03-25