Acoustic emission for detection of process-related damage in pressure vessels and piping

Martin Peacock

doi:10.1117/12.259158

14 November 1996 Acoustic emission for detection of process-related damage in pressure vessels and piping

Martin Peacock

Proceedings Volume 2947, Nondestructive Evaluation of Utilities and Pipelines; (1996) https://doi.org/10.1117/12.259158
Event: Nondestructive Evaluation Techniques for Aging Infrastructure and Manufacturing, 1996, Scottsdale, AZ, United States

Abstract

Although acoustic emission testing is generally grouped with other nondestructive evaluation techniques (NDE) such as magnetic particle testing, it differs fundamentally in the way it detects defects. While common NDE methods seek to illuminate a defect using some sort of energy source, acoustic emission detects deformation processes as they occur. That is to say, only so called 'active' cracks are detected. In other words, acoustic emission testing is sensitive to sharp, process related defects and insensitive to fabrication or other blunt defects at normal service or test loads. It is this property, sensitivity to service related damage, that makes AE a good candidate for detection and monitoring of inservice equipment.

Citation Download Citation

Martin Peacock "Acoustic emission for detection of process-related damage in pressure vessels and piping", Proc. SPIE 2947, Nondestructive Evaluation of Utilities and Pipelines, (14 November 1996); https://doi.org/10.1117/12.259158

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