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Setup for Acoustic Emission Testing

Acoustic emission testing (AE) and test procedures comprise three main elements, shown in Figure 1. First, the structure under test is instrumented with AE equipment, sensors, and electronics (the setup). Then, it is loaded (stressed) to stimulate defects, causing them to release acoustic emission waves. The acoustic emissions are sensed, detected, and measured by the equipment, and a suitable record is made. Finally, the record is analyzed to evaluate the condition of the structure.

References

Dunegan, H.L., “Acoustic Emission Testing of 12-Nickel Maraging Steel Pressure Vessels,” Second International Conference on Pressure Vessel Technology, Part II, Mate-rials, Fabrication and Inspection, San Antonio, Texas, October 1-4, 1973, The American Society of Mechanical Engineers, pp. 635-642.

Gorman, M. R., “Modal AE Analysis of Fracture and Failure in Composite Materials, and the Quality and Life of High Pressure Composite Pressure Vessels,” Journal of Acoustic Emission, Vol. 29, 2011, pp. 1-28.

Harris, D. O.  and H. L. Dunegan, “Continuous Monitoring of Fatigue-Crack Growth by Acoustic-Emission Techniques,” Experimental Mechanics, Vol. 14, No. 2, 1974, pp. 71-81.

Pollock, A. A.  “Loading and Stress in Acoustic Emission Testing,” Materials Evaluation, Vol. 62, No. 3, 2004, pp. 326–333. 

Vahaviolos, S. J., “3rd Generation AE Instrumentation Tech-niques for High Fidelity and Speed of Data Acquisition,” Progress in Acoustic Emission III: Proceedings of the 8th International Acoustic Emission Symposium, 21–24 October 1986, Tokyo, Japanese Society for Nondestructive Testing, p. 102-116. 

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