Acoustic Emission Monitoring of Fatigue Damage in Metals
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Begun in 1973, the Review of Progress in Quantitative Nondestructive Evaluation (QNDE) is the premier international NDE meeting designed to provide an interface between research and early engineering through the presentation of current ideas and results focused on facilitating a rapid transfer to engineering development.
This site provides free, public access to papers presented at the annual QNDE conference between 1983 and 1999, and abstracts for papers presented at the conference since 2001.
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Abstract
Acoustic emission (AE) consists of high frequency stress waves generated by the rapid release of energy due to fracture, plastic deformation, wear or interfacial friction [1]. Acoustic emission monitoring is a very sensitive method with a wide dynamic range and can be used as a diagnostic means of continuous assessment of damage in materials and components. Acoustic emission methods can be applied to metallic components and specimens subjected to monotonic or fatigue loading. In general, acoustic emission can be used to monitor crack initiation and propagation and to locate the source of the emission.