Estimation of the modulus of the vector of displacements in the process of simultaneous formation of cracks in the composites |
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| Authors: | Z T Nazarchuk V R Skal’s’kyi O M Serhienko Yu Ya Matviiv L I Hrechykhin E D Podloznyi |
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| Affiliation: | 1.Karpenko Physicomechanical Institute,Ukrainian National Academy of Sciences,Lviv,Ukraine;2.Lutsk National Technical University,Lutsk,Ukraine;3.Minsk State Higher Aviation College,Minsk,Belarus;4.Belarusian State University of Informatics and Radioelectronics,Minsk,Belarus |
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| Abstract: | We propose a computational model of the emission of acoustic signals accompanying the fracture processes in composite materials
caused by the formation of several cracks regarded as separate events of macrocrack initiation. We perform the numerical analysis
of the components of the vector of displacements for some typical cases of the relative location of two simultaneously formed
penny-shaped cracks. The analysis of the modulus of the vector of displacements reveals the direct proportionality between
its maximum values and the total area of the formed defects that, as well as the inverse proportionality between the same
quantities and the period of relaxation of stresses on the cracks lips. |
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