@article{oai:jaxa.repo.nii.ac.jp:00032562,
 author = {栗林, 一彦 and 岸, 輝雄 and 大野, 一生 and 堀内, 良 and KURIBAYASHI, Kazuhiko and KISHI, Teruo and OHNO, Kazuo and HORIUCHI, Ryo},
 issue = {1_C},
 journal = {東京大学宇宙航空研究所報告},
 month = {Mar},
 note = {応力集中の概念にもとづいたAEの発生モデルを定式化し,AEの結晶粒度依存性の問題に適用した.計算結果より,材料の降伏に伴うAEの大きさは,適当な結晶粒度で最大値を示し,その最大値を示す結晶粒度の大きさは,測定周波数に依存することが予想された.このことはAl多結晶のAEの結晶粒度依存性の実験により検証された., The dynamic source model of Acoustic Emission based upon the concept of the stress concentration is established and applied to the problem about the grain size dependence of AE activities. Numerical results of the present source model suggests that the relation between AE activities and the grain diameter strongly depends upon the measured frequency. AE activities have a maximum at an appropriate grain size. At higher frequencies, AE activities show a maximum at smaller grain sizes. It depends upon the resonant condition between the measured frequency and the relaxation time of the motion of dislocations. The present numerical prediction is verified by the experiment about the grain size dependence of AE activities in poly'crystals of pure aluminum., 資料番号: SA0125867000},
 pages = {781--788},
 title = {<論文>局所的な応力集中の解放に伴うAEの発生モデル},
 volume = {16},
 year = {1980}
}