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Application of wavelet transform to describe acoustic emission in the process of material fracture
V.L. Hilarov 1, Damaskinskaya E.E. 1
1Ioffe Institute, St. Petersburg, Russia
Email: Vladimir.Hilarov@mail.ioffe.ru

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Wavelet analysis of time dependencies of acoustic emission signal amplitudes for heterogeneous materials under mechanical load, as well as earthquake magnitudes in Italy in 1990-2000, is performed. It is shown that the occurrence of large events and destruction of materials is preceded by an increase in energy release at various scale levels. It is concluded that this increase can serve as a predictor of material destruction. Keywords: materials fracture prediction, wavelet analysis, heterogeneous materials.
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