@article{oai:repo.lib.tut.ac.jp:00001100,
 author = {YAMAMOTO, Isamu and MIYATA, Hiroshi and KOBAYASHI, Toshiro},
 issue = {3},
 journal = {JSME international journal. Ser. 1, Solid mechanics, strength of materials, JSME international journal. Ser. 1, Solid mechanics, strength of materials},
 month = {Jul},
 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 a vibrational wave superimposed on the load-deflection curve, and its validity is examined. Further, differences in the impact response curves obtained by the 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 the use of a small specimen which shortens the period of the vibrational wave. (2) The load value is lowered by the use of shock-absorbing material. (3) The differences in the impact response curves and the fracture times obtained from the instrumented Charpy impact test and the one-point bend test are rather large at the lower impact velocity of 3.10m/s; however, the obtained K_<Id> values are nearly coincident ., ・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/110002347696/},
 pages = {361--366},
 title = {Investigation of Instrumented Impact Test and Loading Rate Dependency of Fracture Toughness in Brittle Polymers},
 volume = {35},
 year = {1992}
}