Acoustic Emission (AE) technique is considered as a Non-Destructive
Testing (NDT) method used in monitoring and in the inspection of
structural flaws. The AE signal is the generation of the rapid
release of strain energy that usually occurs within the material
during crack propagation or burst of gas leakage. One of the
applications of this method is to monitor possible flaws that might
take place specifically in pipeline installations. This could also
be used to locate the leak source and effectively characterize the
development of defects such as deformation, corrosion, cracks, etc.
Thus, the acoustic emission signal is used to analyze the
attenuation of elastic waves derived from the pipeline leak because
according to study the AE amplitude is proportional to the leak
energy. From among the leak detection methods, the AE technique can
observe defect in real time situation and it is very sensitive to
any form of flaws. Finally, its application is considered as an
efficient and cost-effective testing process among other relevant
methods.
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