UDC 667.64:668.02
1 Kherson National Technical University, Kherson, Ukraine
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BOUNDARY PROBLEMS OF DETERMINING THE ENERGY SPECTRUM
OF SIGNALS OF ACOUSTIC EMISSION IN CONJUGATED CONTINUOUS MEDIA
Abstract. The boundary problems of the propagation of acoustic emission signals with the conjugation of two continuous media are considered. The main variables in the problems are the force, which determines the occurrence of acoustic emission, and the displacement of medium particles, which determines the occurrence and propagation of elastic waves. The methodological substantiation of the solution of the boundary-value problem in adjoint media using the Green function and Fourier transforms is presented. It is shown that the energy spectrum of acoustic emission is completely determined by the force constants of the material and the forces initiating the occurrence of acoustic emission signals.
Keywords: acoustic emission, signals, spectrum, operator, Green function.
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