| DOI | Trouver le DOI : https://doi.org/10.1063/1.1373904 |
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| Auteur | Rechercher : Kruger, Silvio E.1; Rechercher : Moreau, André1; Rechercher : Lévesque, Daniel1; Rechercher : Lord, Martin1 |
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| Affiliation | - Conseil national de recherches du Canada. Institut des matériaux industriels du CNRC
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| Format | Texte, Article |
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| Conférence | Review of Progress in Quantitative Nondestructive Evaluation, July 16-20 2000, Ames, Iowa USA |
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| Sujet | backscattering; multiple scattering; laser ultrasonics; granular modeling; ultrasonic scattering |
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| Résumé | A laser ultrasonic system has been used to measure backscattered waves with the intention of evaluating microstructures of steels. The frequency spectrum of the backscattered signal from samples with different grain sizes is evaluated and compared with a simple model that accounts for single scattering and a first order correction to multiple scattering. This model predicts a maximum in the spectrum of the backscattered signal at the frequency near the transition between the single and multiple scattering. Accordingly, the experimental results show that for larger grain sizes, the scattered signal has a lower frequency content. A good quantitative correlation between the grain size and a spectrum parameter is presented. |
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| Date de publication | 2001 |
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| Série | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 21273123 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 213b2c0f-6191-49fe-a458-76cde8d90b70 |
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| Enregistrement créé | 2014-12-16 |
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| Enregistrement modifié | 2020-03-27 |
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