疲労き裂面の接触状態による透過超音波の波形特性の変化
書誌事項
- タイトル別名
-
- Property change of transmitted ultrasonic wave due to contact state of fatigue crack face
抄録
<p>In the case that the fatigue crack face is contacted due to the stress condition, un-derestimation or overlook of the crack might happen in ultrasonic testing. To cope with such a crack closure problem, the nonlinear ultrasonic method is immensely promising. The contact and non-contact behaviors of crack faces generate super-and sub-harmonics arising from interactions with large amplitude incident waves. In this study, an attempt has been made to evaluate fatigue cracks in a structural components using ultrasonic waveforms traveling a long distance. Here, the ultra-sonic waves transmitted through the fatigue crack in a steel specimen were measured while changing the contact state of the crack face. The properties of the measured signals were investigated by comparing to numerical modeling results.</p>
収録刊行物
-
- 構造工学論文集 A
-
構造工学論文集 A 66A (0), 529-539, 2020
公益社団法人 土木学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390565134847052416
-
- NII論文ID
- 130007830389
-
- ISSN
- 1881820X
-
- 本文言語コード
- ja
-
- データソース種別
-
- JaLC
- CiNii Articles
- KAKEN
-
- 抄録ライセンスフラグ
- 使用不可