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Information × Registration Number 0222U002591, 0119U101033 , R & D reports Title Methods and algorithms for the strength study of homogeneous and piecewise homogeneous bodies with complicated physical properties popup.stage_title Head Loboda Volodymyr V., Доктор фізико-математичних наук Registration Date 14-02-2022 Organization Oles Honchar Dnipro National University popup.description2 Object of research – a crack between two materials in a bimaterial anisotropic space under tensile-shear load at infinity; a bimaterial body is composed of two heterogeneous piezoelectrics with an electrically insulated interfacial crack, the edges of which are free from loads; inhomogeneous isotropic plates and cylindrical shells with different holes and inclusions; crack at the interface between two elastic regions. The purpose of the work is to develop analytical methods of solution using complex potentials for bimaterial anisotropic space under tensile-shear loading at infinity with interface crack in conditions of plane deformation; MFE-analysis of the stress-strain state (SSS) of inhomogeneous isotropic plates and cylindrical shells with different holes and inclusions; study of the crack at the interface of two elastic regions in the elastic-plastic formulation. Research methods – analytical and numerical methods. The main scientific results are the developed algorithms for analytical and numerical study of the stress-strain state in shells with holes, in the vicinity of the crack under elastic and plastic deformations in the case of elastic, bimaterial anisotropic and piezoelectric bodies. The scientific novelty of the results is as follows: a plane problem for the crack between two materials in anisotropic space under conditions of plane deformation is solved, a new model based on the introduction of shear zones at the crack tips to eliminate oscillatory features of the square root type at the crack tips is proposed; the MFE-analysis of the stress-strain state (SSS) of inhomogeneous isotropic plates and cylindrical shells with different holes and inclusions is performed. The interaction of holes and inclusions on the examples of solving problems of elastic and elastic-plastic deformation of these elements of thin-walled structures is studied. Recommendations for ways to reduce the concentration of stresses around the holes are given. Product Description popup.authors Hart Eteri L. Gergel Irina Yu Dziuba Anatoliy P. Komarov Оlexander V Loboda Volodymyr V Musiyaka Volien Hryhorovych Panin Kostyantyn V Hodanen Tetyana V Chernetsky Sergiy O popup.nrat_date 2022-03-09 Close