面内集中荷重を受ける円輪の動的挙動

概要

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Dymanic response of circular rings with various diameter ratios to inplane concentrated impact was examined. The electromagnetic induction method was empoyed for the generation of impulse because of its good reproducibility and controllability of amplitude. The dynamic photoelastic method and semiconductor strain gauges were used for the measurement of the stree wave propagation through the circular ring. It was confirmed that compressive stress waves propagated into the circular ring transformed to tensile stress aves at the position of conflux stress waves. The stress concentration ratio in the circular ring under the present condition was 12-13% higher than that of the case subjected to diametrically opposite external concentrated static load. moreover, when excessive stress waves were generated in the circular ring, the appearance of a group of cracks was observed.
社団法人日本材料学会の論文
1989-09-15