@article{oai:repo.lib.tut.ac.jp:00001246, author = {山本, 勇 and 宮田, 博 and 猪ケ倉, 周一 and 小林, 俊郎 and MIYATA, Hiroshi and YAMAMOTO, Isamu and IGAKURA, Shuichi and KOBAYASHI, Toshiro}, issue = {543}, journal = {日本機械学會論文集. A編, Transactions of the Japan Society of Mechanical Engineers. A}, month = {Nov}, note = {In the present study, the effect of the specimen size on the vibrational wave superimposed on the load-deflection curve of polYmers is first investigated. Next, in the instrumented Charpy test, a shock-absorbing material is used in order to prevent the generation of the vibrational wave superimposed on the load-deflection curve, and its validity is discussed. Further, differences of the impact response curves obtained by an instrumented Charpy test and the one-point bend test are compared and discussed. The results of this study are summarized as follows. (1) The vibrational wave can be prevented by using a small specimen which shortens the period of the vibrational wave. (2) The load value is lowered by using shock-absorbing material. (3) The differences in the impact response curves and the fracture times obtained from tbe instrumented Charpy impact test and the one-point bend test are rather large in the lower impact velocity of 3.10m/s; however, the obtained K_(Id) values are nearly coincidental., ・rights:日本機械学会 ・rights:本文データは学協会の許諾に基づきCiNiiから複製したものである ・relation:isVersionOf:http://ci.nii.ac.jp/naid/110002370777/}, pages = {2722--2726}, title = {脆性高分子材料の衝撃試験法の検討と負荷速度依存}, volume = {57}, year = {1991} }