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Information × Registration Number 0226U002756, (0124U000330) , R & D reports Title Computational models of piezoactive crystalline and quasi-crystalline composites with cracks at the material interfaces. popup.stage_title Системи електрично провідних міжфазних тріщин у п’єзоелектричному квазікристалі. Head Loboda Volodymyr V., д.ф.-м.н. Registration Date 05-03-2026 Organization Oles Honchar Dnipro National University popup.description1 Finding the critical parameters of interface cracks in quasicrystalline composites with piezoelectric properties, as well as piezoelectric and piezoelectric compounds with taking into account the contact of the crack faces. popup.description2 The main scientific results consist in constructing accurate analytical solutions to the problems of studying stress fields, energy release rates, contact zones of faces of individual interfacial cracks and their systems in piezoelectric materials and in quasi-crystals with a piezoelectric component using the apparatus of the theory of functions of a complex variable. In order to test the obtained analytical solutions, as well as to assess the influence of the finiteness of the studied areas on the fracture parameters, finite element modeling of the stress-strain state of piezoelectric bimaterials with cracks under different types of electrical boundary conditions on their faces is used. The scientific novelty of the obtained results lies in the following: an arbitrary non-periodic system of collinear cracks of different lengths at the interface of piezoelectric materials was investigated; a system of electrically conducting interfacial cracks in a piezoelectric quasicrystal loaded with mechanical and electrical external fields was investigated within the framework of the classical model; a crack moving along the interface of two quasicrystalline materials, including those with a piezoelectric component, was analyzed. Product Description popup.authors Volodymyr B. Govorukha Volodymyr V. Loboda Tetiana V. Khodanen Viktor Y. Adlutskyi Oleksandr A. Dziuba Iryna Y. Herhel Eteri L. Hart Oleksandr V. Komarov popup.nrat_date 2026-03-05 Close