加硫ゴムの衝撃試験結果のパルス応答試験法による解析

概要

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An impact test has been performed on some kinds of rubber vulcanizates and the impulsive spring constant and the impulsive loss constant, whose appropriateness was already proved in our earlier paper, have been calculated.<BR>This paper shows that the two constants mentioned above represent correctly the well-known impulsive properties of rubber vulcanizates. Special emphasis is placed on the results that these two constants depend on such important variables as the magnitude of impulsive velocity and the weight of the hammer; and that the impulsive spring constant depends largely on the content of carbon black ; and furthermore that the magnitude of the impulsive loss constant increases in the order of NR, SBR, NBR, and IIR. The dynamic spring constant and the dynamic loss constant are also calculated by the method indicated in the attached instruction of JIS-K-6385 and compared with the impulsive constants obtained here.
日本ゴム協会の論文