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Model of acoustic emission signal at the prevailing mechanism of composite material mechanical destruction

Опубликовано в Тематика исследований

S. Filonenko ( Філоненко С.Ф. ), T.V. Nimchenko ( Німченко Т.В. ), A.P. Kosmach ( Космач О.П. )

 National Aviation University, Kyiv, Ukraine. E-mail:  Этот адрес электронной почты защищен от спам-ботов. У вас должен быть включен JavaScript для просмотра.

Model of acoustic emission signal at the prevailing mechanism of composite material mechanical destruction 

Sergey Filonenko ( Філоненко С.Ф. ), Prof Dr Habil Date and place of birth: 1954, Echmiadzin, Armenia.Education: Kiev Polytechnic Institute.Affiliation and functions: director of the Institute of Information Diagnostic Systems at the National Aviation University since 2008.Research interests: diagnostics of technological processes, automatic diagnostic systems.Publications: over 170 books and articles, 29 patents. 
Tatiana NIMCHENKO ( Німченко Т.В. )  Date and place of birth: 1980, Kiev, UkraineEducation: National Aviation University. Affiliation and functions: assistant at National Aviation University since 2007.Research interests: diagnostics of technological processes, signal processing.Publications: over 40 articles. 
Aleksandr KOSMACH ( Космач О.П. ) Date and place of birth: 1986, Chernigiv, Ukraine Education: National Aviation University.Affiliation and functions: post-graduate student at National Aviation University since 2008. Research interests: diagnostics of technological processes, signal processing. Publications: 10 article.
Abstract.
A model of acoustic emission signal formation at the prevailing mechanism of the destruction of composite materials is considered. The results of acoustic emission signal modelling are presented, taking into account the variable velocity of loading change. Acoustic emission signal experimental research results corresponding to theoretical research results are considered in this paper. It is shown that irregularity of the trailing edge of the acoustic emission signal is influenced by the change in the rate of the destruction process in composites.

Keywords: acoustic emission, stress, crack growth, loading, signal of acoustic emission, fracture, composite material, fibre bundle model.

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