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Information × Registration Number 0209U008593, 0108U006619 , R & D reports Title Research and simulation of interaction of high-power acoustic field with discontinuity in metals popup.stage_title Head Ljutak Igor Zinovijovych, Registration Date 09-11-2009 Organization Ivano-Frankivsk Nstional Technical University of Oil and Gas popup.description2 The purpose of research - to justify the thermoacoustic method of metal inhomogeneities nondestructive testing. Methods of investigation- statistical methods, methods of numerical analysis, experiments conducting and mathematical modeling. To increase the reliability of metal structures heterogeneities detection a new thermoacoustic method of nondestructive testing is proposed. The method allows non-destructive testing for detecting heterogeneities in certain area. The proposed mathematical model, by which thermoplastic effect is estimated, is the base of thermoacoustic method. The calculation of the mathematical model is performed by means of finite elements. For temperature field distribution evaluation in the neighborhood crack a numeric model is developed, which implements thermoplastic effect. The results of calculations in image distribution of thermal fields in the vicinity of heterogeneity at a particular time are presented. Technology of thermoacoustic method control is given for proposed control method of nondestructive control implementing. Product Description popup.authors Лютак Ігор Зіновійович Лютак Зіновій Петрович Мандра Андрій Анатолійович Семеген Михайло Михайлович popup.nrat_date 2020-04-02 Close