Title: Localization of inhomogeneities in an elastic plate using the time reversal method
Authors: Eremin, Artem 
Glushkov, Evgeny
Glushkova, Natalia
Lammering, Rolf  
Language: en
Issue Date: 2017
Document Type: Article
Journal / Series / Working Paper (HSU): Acoustical physics 
Volume: 63
Issue: 5
Page Start: 562
Page End: 569
Abstract: 
Theoretical and practical aspects of applying time reversal of elastic waves to localize a source of oscillations or a defect are considered in problems of active ultrasonic monitoring of thin-walled metal structures. Backward reradiation of a time-reversed signal is implemented using a computer model based on a semianalytical integral approach. The proposed algorithm is verified experimentally on aluminum samples excited by piezoelectric wafer active sensors. The results corroborate the possibility of reliably determining of the position and size of the load application region and a local inhomogeneity with a relatively small number of signal measurement points on the sample surface.
Organization Units (connected with the publication): Mechanik 
URL: https://ub.hsu-hh.de/DB=1.8/XMLPRS=N/PPN?PPN=1006099131
DOI: 10.1134/S1063771017050050
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