@article{oai:kanazawa-u.repo.nii.ac.jp:00011761, author = {Chatani, Akiyoshi and Hatake, Yoshikatsu and 茶谷, 明義 and 畠, 義勝}, issue = {2}, journal = {金沢大学工学部紀要 = Memoirs of the Faculty of Technology Kanazawa University}, month = {Sep}, note = {Many experimental studies to know the behavior of materials under the impact compression or tension have been carried out. On the impact bending, however, test methods under the consideration of strain rate and bending moment rate have been little reported. Therefore, we studied the propagation phenomena of the stress waves produced in a short beam specimen by the impact bending. On the basis of this study, we contrived the impact bending test method on which we could define the strain rate and the bending moment rate. As the result of some experiments, the main conclusions obtained are as follows ; (1) The concept of the statistical bending moment held good also in the case of the present impact test. (2) The ratio of the impact bending strength of S20C test specimens to the static one corresponding to the strain 0.5% was (1.28-1.47) in the range of strain rate (24.2-34.6) 1/s. (3) When the yield point appeared clearly, the bending moment rate became 0 swiftly in the neighbourhood of the yield point, and the strain rate went up to the extent of the strain beyond 1%. In addition, some possible errors included in the present results would be discussed in the future.}, pages = {73--83}, title = {衝撃曲げ強さの試験法に関する実験的研究}, volume = {8}, year = {1974} }