Detection of crack propagation in concrete with embedded ultrasonic sensors
| Autor: | S. Pirskawetz, Arno Zang, J. Wolf |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Digital image correlation
Materials science business.industry Mechanical Engineering Acoustics Attenuation Fracture mechanics Signal Acoustic emission Mechanics of Materials Nondestructive testing mental disorders General Materials Science Ultrasonic sensor Sensitivity (control systems) Composite material business |
| Zdroj: | Engineering Fracture Mechanics |
| Popis: | This study evaluates the sensitivity of embedded ultrasonic sensors to detect propagating cracks within concrete. Because of the sensors constant coupling to the medium, highly sensitive data analysis techniques, such as the correlation between signals and their attenuation, are applied to detect changes in the signal due to propagating cracks. The accuracy of the detected onset of the crack is evaluated with the nondestructive testing methods acoustic emission and Digital Image Correlation. It shows that with embedded ultrasonic sensors crack propagation can be detected before it is visible on the surface of the concrete. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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