Nonlinear elastic imaging using reciprocal time reversal and third order symmetry analysis.


This paper presents a nonlinear imaging method for the detection of the nonlinear signature due to impact damage in complex anisotropic solids with diffuse field conditions. The proposed technique, based on a combination of an inverse filtering approach with phase symmetry analysis and frequency modulated excitation signals, is applied to a number of… (More)
DOI: 10.1121/1.4707522


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