Acoustic Emission (AE)

Definition

Acoustic Emission (AE) is the phenomenon of transient elastic waves generated by the rapid release of energy from localized sources within a material.

Explanation

In acoustic emission testing, these waves are detected to monitor active damage processes such as crack growth, plastic deformation, corrosion, or leakage in real time.

Key Notes

• Passive non-destructive testing (NDT) method
• Sensitive to active damage mechanisms only
• Enables real-time structural health monitoring
• No external excitation required

Key Notes

AE Sensor, AE Event, Elastic Wave, Structural Health Monitoring