| Autor: |
Groth, E. B., Shumacher, G., J., Idzi, Rojo Tanzi, B. N., Clarke, T. G. R., Lima, T. R. S., Jacques, R. C. |
| Předmět: |
|
| Zdroj: |
Journal of Acoustic Emission; Jan-Dec2020, Vol. 37, pS21-S29, 9p |
| Abstrakt: |
Structural health monitoring of critical components such as bridges, pipes, aircraft bodies is regarded with great interest by the industry and researchers nowadays. The development of these evaluation techniques is strictly connected to the development of new materials, with new properties, behaviors, and other characteristics, allowing the design of new transducers. This includes works in the propagation of mechanical waves, which is a phenomenon highly studied in non-destructive testing (NDT). Acoustic emission testing is a technique that uses mechanical wave propagation to monitor structural integrity by analyzing the sound waves produced by small increments in size of defects present in a sample. This type of test is challenging because the acoustic emission event cannot be repeated, and techniques such as averaging of multiple readings to increase signal to noise ratios cannot be thus employed. In this context, the present work suggests a numerical model of the acoustic emission phenomenon for better understanding of the generated signal, which allows for better designing of resonant sensors with a high sensitivity. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
