Academic Journal
Detection of defects in a 2D fluid-solid periodic cluster
| العنوان: | Detection of defects in a 2D fluid-solid periodic cluster |
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| المؤلفون: | Alaoui, Hamza, Hafidi, Rodriguez, Samuel, Deschamps, Marc |
| المساهمون: | Institut de Mécanique et d'Ingénierie (I2M), Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Arts et Métiers Sciences et Technologies |
| المصدر: | ISSN: 0041-624X. |
| بيانات النشر: | CCSD Elsevier |
| سنة النشر: | 2021 |
| المجموعة: | Institut National de la Recherche Agronomique: ProdINRA |
| مصطلحات موضوعية: | Nondestructive Testing, Ultrasonic Waves, Topological Imaging, Heterogeneous Medium, Multiple scattering, Periodic Cluster, [SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph] |
| الوصف: | International audience ; The present work deals with locating a defect buried in a medium composed of a fluid matrix and small solid inhomogeneities. Classical imaging methods are based on delay and sum principle and would implicitly assume that the undamaged medium is homogeneous. The topological imaging framework however allows to take into account the heterogeneous nature of the undamaged medium and potentially to take advantage of it. In this work, it is applied to a demanding test case with different assumptions on the knowledge of the medium properties using a specifically-designed fluid-solid compatible imaging function. It leads to the definition of three imaging processes whose results are compared using respectively synthetic and experimental data. The results show the relevance of using the inhomogeneities' locations information, but not necessarily at all steps of the imaging process, leading to the definition of so called hybrid topological imaging method. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | info:eu-repo/semantics/altIdentifier/pmid/33412478; PUBMED: 33412478; WOS: 000620644600008 |
| DOI: | 10.1016/j.ultras.2020.106307 |
| الاتاحة: | https://hal.science/hal-03064836 https://hal.science/hal-03064836v1/document https://hal.science/hal-03064836v1/file/preprint_accepte_hal.pdf https://doi.org/10.1016/j.ultras.2020.106307 |
| Rights: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.EC88B4D3 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.ultras.2020.106307 |
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