P1.21 - Characterization of defects in aluminum plates using acoustic impedance analysis of piezoelectric ceramic discs
- Event
- 2025 ICU PADERBORN - 9th International Congress on Ultrasonics
2025-09-21 - 2025-09-25
Paderborn - Band
- Posters
- Chapter
- Posters
- Author(s)
- M. K. Takahasi, J. M. Maia, W. J. da Silva, A. A. Assef, S. F. Pichorim, R. da Costa - Federal University of Technology–Paraná (UTFPR), Curitiba (Brazil), E. T. Costa - State University of Campinas (UNICAMP), Campinas (Brazil)
- Pages
- 356 - 359
- DOI
- 10.5162/Ultrasonic2025/P1.21
- ISBN
- 978-3-910600-08-9
- Price
- free
Abstract
This work aimed to identify defects in aluminum plates by analyzing the module and phase angle of the electrical impedance of piezoelectric ceramics. Five aluminum plates with three centrally aligned holes in the center of the plate, and one reference plate (without holes) were used. Four ceramic discs were fixed to each of the six plates, and the impedances were compared using the root mean square deviation index (RMSD). The results showed that the method can be used for material characterization using the vibration modes of the ceramics.