Acoustic Emission Testing (AE)
Description
Acoustic Emission Testing (AE) testing monitors high-frequency sound waves emitted by materials under stress. These emissions can indicate structural changes, such as crack growth or material deformation.
Application
When a solid material is stressed, imperfections emit short bursts of acoustic energy known as "emissions." Specialized receivers can detect similar to ultrasonic testing, acoustic emissions. Sources of emissions can be evaluated by studying their intensity and arrival time to gather information, such as their location, about the energy sources. Acoustic Emission Testing (AE) is commonly used in pressure vessels, storage tanks, and pipeline integrity assessments.
step by step Process
- Setup: Place acoustic sensors on the material to be tested.
- Stress Application: Apply stress to the material via mechanical loads, pressure, or temperature changes.
- Monitoring: Capture and analyze sound waves to identify potential flaws or structural changes.
- Data Analysis: Use software to interpret emission patterns and locate defects. All interpretations and discontinuities found are evaluated, sized, and compared to the applicable code, standard or customer specifications to determine if they meet the requirements to be deemed acceptable or rejectable.