Ultrasonic diagnostics of a metal structure on the basis of the method of time decorrelation of signals of acoustic emission resulting from kinetic indentation

Autor:	V. A. Grechikhin, M. B. Bakirov, Kachanov Vladimir K, Igor V. Sokolov
Rok vydání:	2008
Předmět:	Structural material Materials science Yield (engineering) Noise (signal processing) Mechanical Engineering Acoustics Condensed Matter Physics Kinetic energy Acoustic emission Mechanics of Materials Indentation General Materials Science Ultrasonic sensor Decorrelation
Zdroj:	Russian Journal of Nondestructive Testing. 44:766-779
ISSN:	1608-3385 1061-8309
DOI:	10.1134/s1061830908110041
Popis:	It is shown that structural noise (SN) and informative echo signals can be decorrelated not only during ultrasonic flaw detection for extracting signals from SN but also in ultrasonic structuroscopy, in which reflections from a structure are not a disturbance but yield information on the structure of the tested material. Using the technique of wavelet processing of SN signals proposed in this study, signals of acoustic emission that appear during kinetic indentation of metals are analyzed in order to determine physicomechanical characteristics of metals.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a0351509b47d62fa4500bccb4ca55dc8 https://doi.org/10.1134/s1061830908110041 Zobrazit plný text záznamu Full text from SpringerLink