Academic Journal
Scattering-based Defect Characterisation using Laser Ultrasound Arrays
| العنوان: | Scattering-based Defect Characterisation using Laser Ultrasound Arrays |
|---|---|
| المؤلفون: | Lukacs, Peter, Davis, Geo, Pieris, Don, Zhang, Jie, Tant, Katy, Stratoudaki, Theodosia |
| المصدر: | Lukacs , P , Davis , G , Pieris , D , Zhang , J , Tant , K & Stratoudaki , T 2024 , Scattering-based Defect Characterisation using Laser Ultrasound Arrays . in 2024 IEEE Ultrasonics, Ferroelectrics, and Frequency Control Joint Symposium (UFFC-JS) . Proceedings of the IEEE International Symposium on Applications of Ferroelectrics , Institute of Electrical and Electronics Engineers (IEEE) , 2024 IEEE Ultrasonics, Ferroelectrics, and Frequency Control Joint Symposium (UFFC-JS) , Taipei , Taiwan , 22/09/24 . https://doi.org/10.1109/UFFC-JS60046.2024.10793986 |
| بيانات النشر: | Institute of Electrical and Electronics Engineers (IEEE) |
| سنة النشر: | 2024 |
| المجموعة: | University of Bristol: Bristol Reserach |
| الوصف: | Assessment of defect size, shape and orientation is critical in the field of Non-Destructive Evaluation. This assessment can be performed with high accuracy by measuring the ultrasonic scattered wave field generated by a defect as a function of incidence and reflected angles, and producing the associated scattering matrix. In this work the scattering matrix is measured for defect characterization using non-contact, laser ultrasound. A synthetic laser induced phased array (LIPA) is used to record the scattered wave field at varying angles, on an aluminum sample for four crack-like defects, and the scattering matrix is extracted. The directivity of laser ultrasound is accounted for by a new concept proposed, called the sensitivity matrix. The experimental scattering matrices are compared to numerically modelled ones to characterize the orientation of the defects. Good agreement is observed between the true and measured defect orientations especially when compared to an imaging-based approach, where one of the defects could not be imaged accurately. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| ردمك: | 979-83-503-7191-8 |
| Relation: | urn:ISBN:9798350371918 |
| DOI: | 10.1109/UFFC-JS60046.2024.10793986 |
| الاتاحة: | https://hdl.handle.net/1983/d6627d11-1cab-4341-8ced-8378944200b9 https://research-information.bris.ac.uk/en/publications/d6627d11-1cab-4341-8ced-8378944200b9 https://doi.org/10.1109/UFFC-JS60046.2024.10793986 https://research-information.bris.ac.uk/ws/files/441244628/UFFC_JS_2024_Lukacs.pdf https://2024.ieee-uffc-js.org/ |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.7F17BB35 |
| قاعدة البيانات: | BASE |
| ردمك: | 9798350371918 |
|---|---|
| DOI: | 10.1109/UFFC-JS60046.2024.10793986 |