تقرير
Experimental validation of guided wave mode conversion at part-thickness defects in metal plates
| العنوان: | Experimental validation of guided wave mode conversion at part-thickness defects in metal plates |
|---|---|
| المؤلفون: | Li, L, Fromme, P |
| المساهمون: | Su, Zhongqing, Peters, Kara J, Ricci, Fabrizio, Rizzo, Piervincenzo |
| المصدر: | In: Su, Zhongqing and Peters, Kara J and Ricci, Fabrizio and Rizzo, Piervincenzo, (eds.) Proceedings Volume 12951: Health Monitoring of Structural and Biological Systems XVIII. (pp. p. 1295116). SPIE: Bellingham, WA, USA. (2024) |
| بيانات النشر: | SPIE |
| سنة النشر: | 2024 |
| المجموعة: | University College London: UCL Discovery |
| مصطلحات موضوعية: | Finite element methods, Waveguides, Scattering, Aluminum, Structural health monitoring, Transducers, Nondestructive evaluation, Wave propagation |
| الوصف: | Low frequency guided waves have been used to develop Structural Health Monitoring (SHM) for the early detection of fatigue cracks in metallic aircraft structures. The scattering and mode conversion of guided waves at part-thickness defects was investigated to quantify the sensitivity for defect detection and the potential for the development of a baseline-free SHM methodology employing mode-converted guided waves. Finite Element Analysis (FEA) and experimental validation were conducted to investigate the mode converted scattering from the S0 to the A0 Lamb wave mode at part-thickness crack-like defects in an aluminum plate. A piezoelectric (PZT) transducer was experimentally used as a plate edge excitation for the S0 mode and the out-of-plane displacement was measured using a laser vibrometer. Good agreement between the FEA and experimental results was obtained and the influence of defect depth and length was investigated and quantified. |
| نوع الوثيقة: | report |
| وصف الملف: | text |
| اللغة: | English |
| العلاقة: | https://discovery.ucl.ac.uk/id/eprint/10193309/1/1295116.pdfTest; https://discovery.ucl.ac.uk/id/eprint/10193309Test/ |
| الإتاحة: | https://discovery.ucl.ac.uk/id/eprint/10193309/1/1295116.pdfTest https://discovery.ucl.ac.uk/id/eprint/10193309Test/ |
| حقوق: | open |
| رقم الانضمام: | edsbas.F1BEAF6C |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |