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Defect detection of concrete in infrastructure based on Rayleigh wave propagation generated by laser-induced plasma shock waves
https://repo.qst.go.jp/records/84932
https://repo.qst.go.jp/records/849324a611cd5-96e9-45d1-8f65-5ba6a3919620
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2022-02-02 | |||||
| タイトル | ||||||
| タイトル | Defect detection of concrete in infrastructure based on Rayleigh wave propagation generated by laser-induced plasma shock waves | |||||
| 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 | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Sho, Wakata
× Sho, Wakata× Hosoya Naoki× Noboru, Hasegawa× Masaharu, Nishikino× Noboru, Hasegawa× Masaharu, Nishikino |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Defects in large concrete structures, including critical infrastructure such as bridges and tunnels, are traditionally detected by hammering tests by inspectors. However, the results depend on the inspectors’ skills. Additionally, hammering tests are impractical to thoroughly inspect massive structures in a short time. Herein defect detection in concrete structures is realized by telemetry using shock waves generated by laser-induced plasma (LIP). LIP is generated by irradiating a Nd:YAG pulsed laser near the concrete surface. As LIP spreads to the surrounding area at an ultrafast speed, a spherical shock wave is generated. This shock wave realizes a non-contact, non- destructive impulse excitation force on a concrete structure. The response of the concrete structure is measured with a laser Doppler vibrometer (LDV). Applying this method to detect defects in an artificial concrete specimen can identify the natural frequencies and modes of the defects. By measuring the propagation of the Rayleigh waves generated by the LIP shock waves, defects and the approximate location of the boundary between the defective part and the defect-free part are detected. | |||||
| 書誌情報 |
International Journal of Mechanical Sciences 巻 218, p. 107039, 発行日 2022-01 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0020-7403 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.ijmecsci.2021.107039 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.sciencedirect.com/science/article/pii/S0020740321007256 | |||||
