Scattering of Elastic Waves by Interface Cracks between Dissimilar Materials
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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
Composite structures, which are widely used in many critical applications in industry, consist of different elastic materials formed in layers. The layers are bonded together along common faces, but it can often happen that the bonding is imperfect, and cracks or weak bonding occur at the interface. The presence of critical defects can cause premature failure. It is of importance to detect interface cracks and weak interlayers nondestructively, and one of the most practical methods for the detection utilizes the scattering of elastic waves, which may convey quantitative information on the defects.