801 局所的にセラミック粒子で強化された金属の巨視的界面端部応力場の評価(OS8(2) 締結・接合部の力学・プロセスと信頼性評価)

概要

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To contribute to a better understanding of the stress distributions and fracture mechanisms of an aluminum alloy locally reinforced by SiC particles and Al_2O_3 whiskers stress fields around macroscopic interface edge between metal matrix composite (MMC) and Al alloy are analyzed numerically. The displacement fields around the MMC/Al interface edge are also measured by means of high-sensitivity moire interferometry. The displacement and stress distribution of MMC/Al joint are 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
2006-08-03