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Information × Registration Number 0225U003360, (0122U001460) , R & D reports Title Problems of strength, stability and failure of structural elements with holes, cracks and other stress concentrators popup.stage_title Проблеми міцності, стійкості та руйнування структурних елементів з отворами, тріщинами та іншими концентраторами напружень Head Loboda Volodymyr V., Доктор фізико-математичних наук Registration Date 23-06-2025 Organization Oles Honchar Dnipro National University popup.description1 Development of methods and solution of complex linear and physically nonlinear problems of stress-strain determination of structurally inhomogeneous bodies with holes, cracks and other stress concentrators. popup.description2  Methods for studying single and collinear cracks between two piezoelectric materials under mixed boundary conditions on their crack faces have been developed and implemented; the influence of electric and magnetic fields on the elastic-deformable state and fracture parameters of single interface cracks with different types of electric and magnetic boundary conditions on their crack faces was analyzed, the interaction of collinear crack systems between piezoelectric-electromagnetic materials was investigated, cracks moving along the interface of dissimilar materials were investigated; computational models for quasi-crystalline bimaterials with a piezoelectric component in their physical properties were developed and investigated; using computer modeling, a study of stress concentration in the vicinity of holes in nonhomogeneous thin plates, cylindrical and conical shells was conducted, taking into account the influence of mechanical properties and geometric parameters of inclusions; an approach has been applied that allows, by replacing rather costly destructive tests of full-scale structures with less costly, although rather laborious, system computer modeling and using data from non-destructive (in the elastic deformation region) testing of the structure, to establish control over the magnitude of the accumulated error in the form of quantitative indicators of deviations (dispersion) of the calculation results from the deviation of the input data, and to determine their limit tolerances, in particular, those that are introduced into the structure during its manufacture and, as a result, are not taken into account in the calculations. Product Description popup.authors Hart Eteri L. Herhel Iryna Yu. Dziuba Anatolii P. Komarov Oleksandr V. Loboda Volodymyr V. Panin Kostiantyn V. Khodanen Tetiana V. Chernetskyi Serhii O. popup.nrat_date 2025-06-23 Close