501 SiC/Al2O3ハイブリッドMMC/Al鋳造合金接合部の応力解析と強度評価(OS8:接合・複合材料の強度と力学(1),学術講演)

概要

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To contribute to a better understanding of the stress distributions and fracture mechanisms of an aluminum cast alloy locally reinforced by SiC particles and Al_2O_3 whiskers a four-point bending test was precisely analyzed experimentally and numerically. The fracture mechanism and the fracture path has been investigated on the fracture surfaces. Crack initiation locations and fracture surface morphologies have also been investigated. The displacement fields around the MMC/Al interface edge were measured by means of high-sensitivity moire interferometry. The displacement and stress distribution of MMC/Al joint have been calculated based on an inclusion array model considering the microscopic inhomogenious effects. Both the experimental results and the finite element simulation results show that the critical location for fracture is a region in MMC side near the macroscopic interface.
一般社団法人日本機械学会の論文
2005-11-25