書誌事項
- タイトル別名
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- Investigation of the Mechanism of Fatigue in Steel by Ultrasonic Attenuation
- チョウオンパ ゲンスイ ニ ヨル コウザイ ノ ツカレ キコウ ノ ケンキュウ
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説明
Ultrasonic attenuation in steel bars was measured after various numbers of repeated tensile loading. The result was that the attenuation decreased rapidly at first, then increased gradually, until finally dropped abruptly before failure. As the cause of the attenuation, a model was considered to represent the energy loss of the wave motion due to Coulomb friction between particles of different elastic modulus. Assuming a proper distribution of the element of Coulomb friction within the material, the attenuation is found to behave in the same manner as the one due to viscous friction for a set frequency. The change of attenuation with the number of repetition of loading is attributed to the disorientation of the crystals at an early stage and the increase of the number of microcracks later. The investigation suggests the possibi1ity of detecting the degree of fatigue in materials by measuring the change of ultrasonic attenuation with the load repetition.
収録刊行物
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- 日本機械学會論文集
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日本機械学會論文集 24 (139), 161-166, 1958
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390282680132541952
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- NII論文ID
- 110002350465
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- NII書誌ID
- AN00187419
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- ISSN
- 21859485
- 00290270
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- NDL書誌ID
- 10034674
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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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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可