19 鋼球落下標準AE源を介した計測値と割れの大きさの対応(昭和49年学協会刊行物掲載論文再録集)
書誌事項
- タイトル別名
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- 19 Correlation between Acoustic Emission and Crack Size calibrated by Standard AE Source generated by dropped Steel Ball(Collected Papers Published by Staff of Ship Research Institute at societies and Institutions in 1974)
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説明
A linear correlation in log-log plot between energy of acoustic emission and area of crack was obtained in a tearing test of TIG welded specimen. Energy of AE was calibrated in comparison with a standard AE source which was generated by a steel ball dropped on the tested specimen from a known height. As for the standard AE, experiments show that: (1) ringing frequency of standard AE signal is approxmately inversely proportional to the diameter of a ball and independent of the dropping height and the thickness of plate, (2) the amplitude of standard AE signal is proportional to the 2/3 power of the dropping height. These results were well explained by a theory on rebound height of dropped ball.
収録刊行物
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- 船舶技術研究所報告
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船舶技術研究所報告 11 (7), 83-89, 1975-01-25
運輸省船舶技術研究所
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詳細情報 詳細情報について
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- CRID
- 1542824520121818240
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- NII論文ID
- 110007662314
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- NII書誌ID
- AN0013325X
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- 本文言語コード
- ja
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- データソース種別
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- NDLデジコレ（旧NII-ELS）
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