A SIMULATIVE EXPERIMENT FOR CHARACTERIZING THE STRENGTH OF FUNCTIONALLY GRADIENT MATERIAL - (THE ANALYSIS FOR THE CASE OF RADIAL CRUSHING TEST)

被引:11
作者
FUKUI, Y [1 ]
KINOSHITA, H [1 ]
NAKANISHI, K [1 ]
机构
[1] JAPAN STEEL WORKS LTD,AKI KU,HIROSHIMA 736,JAPAN
来源
JSME INTERNATIONAL JOURNAL SERIES I-SOLID MECHANICS STRENGTH OF MATERIALS | 1992年 / 35卷 / 01期
关键词
BENDING; ELASTICITY; BRITTLE FRACTURE; NUMERICAL ANALYSIS; CENTRIFUGAL CASTING; FUNCTIONALLY GRADIENT MATERIAL; RADIAL CRUSHING STRENGTH;
D O I
10.1299/jsmea1988.35.1_95
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
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 multiples of gravity. The radial crushing strength of the FGM was measured under the combined conditions for cast rings with three different volume fractions and three different multiples 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.
引用
收藏
页码:95 / 101
页数:7
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