脆性材料を対象とした衝撃曲げ強さの評価法に関する基礎的研究

概要

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The purpose of this study is to obtain the standardized testing method of the impact bending strength of brittle materials, by use of the simply supported beam type specimen under concentrated impact load. In this paper, we proposed the test method of measuring the acceleration of the hammer, and as concerns the physical unit, we proposed the impact bending strength by use of Impulse. We investigated the propriety of our proposal method by some experiments with the specimen of acrylic resin. The results is as follows. (1) The change with time of the strain of the impact bending loaded specimen is much same to that of the acceleration of the hammer. (2) When the impact strength is shown by impulse, it is easy to obtain the speed of the hammer when the specimen is just broken and easy to change to the impact strength shown by energy. By these results, the propriety of our proposal method was confirmed. And the basic properties of impact loaded specimens are obtained by the experiments with the model-specimen.
社団法人日本建築学会の論文
1985-12-30