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Fundamental Research on Stress-Wave-Emission Method for Pressure Vessels
https://jaxa.repo.nii.ac.jp/records/34470
https://jaxa.repo.nii.ac.jp/records/34470316e565a-5712-4ee7-b9ee-493eacee9796
名前 / ファイル | ライセンス | アクション |
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SA2400901.pdf (664.0 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2015-03-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Fundamental Research on Stress-Wave-Emission Method for Pressure Vessels | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
著者 |
HATANO, Hajime
× HATANO, Hajime× HORIUCHI, Ryo× NIWA, Noboru |
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出版者 | ||||||
出版者 | 東京大学宇宙航空研究所 | |||||
出版者(英) | ||||||
出版者 | Institute of Space and Aeronautical Science,University of Tokyo | |||||
書誌情報 |
en : ISAS report/Institute of Space and Aeronautical Science,University of Tokyo 巻 38, 号 3, p. 31-40, 発行日 1973-05 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Fundamental research for the application of the Stress-Wave-Emission method to nondestructive inspection and safety monitoring of structures is carried out experimentally. Firstly, Stress-Wave Emission of a model pressure vessel is observed during hydrostatic testing. Time differences in Stress-Wave Emission signals are measured between four sensors attached to the surface of the vessel wall, and their source points are located by triangulation technique using an electronic computer. Stress-Wave Emission that is radiated at pressures lower than the proof pressure is due to the structual imperfection which is liable to cause a fracture. Secondly, low-cycle fatigue testing of a model pressure vessel is monitored by the Stress-Wave Emission method using a single-channel system simplified for practical use. During the 1st pressure cycle, a large amount of Stress-Wave Emission is recorded at high pressures. From the 2nd to about the 5300th cycle, scarcely any Stress-Wave Emission is detected, which is the result of non-reversibility of the Emission called Kaiser effect. Subsequenty, a small amount of the Stress-Wave Emission caused by fatigue crack growth is observed at every pressure cycle until the crack penetrates the vessel wall at the 5375th cycle. The usefulness of this method to predict the fatigue failure of the vessels in service is shown. Thirdly, it is observed that a full-size titanium-alloy rocket chamber under hydrostatic testing emits very large Stress-Wave Emission on account of twinning of the material. The Stress-Wave Emission method is demonstrated to have a potential value for nondestructive testing and safety monitoring of pressure vessels. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0372-1418 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00675986 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: SA2400901000 |