Bridges are critical structures in urban infrastructure and they require careful inspection that guarantees reliability in results. A timely assessment could avoid catastrophes.
Structural Health Monitoring (SHM) of bridges and buildings can be carried out by means of Acoustic Emission.
Acoustic Emission testing is a non-destructive testing that allows the continuous monitoring of structures such as bridges, dams, buildings, etc. for long periods of time. The main advantages of the use of acoustic emission for this purpose are the following:
- Unlike other non-destructive testing methods, acoustic emission can detect active cracks, i.e., cracks which are growing.
- Acoustic emission helps to detect hidden cracks or cracks in places which are not easy to access.
- Acoustic emission is one of the few non-destructive testing methods appropriate for the continuous monitoring of structures, for long periods of time. The method is very sensitive and helps detect even emerging cracks.