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Information × Registration Number 0211U006009, 0107U000357 , R & D reports Title Development of models and methods for calculation thermal and stress-strain state of structurally inhomogeneous elements of designs with regard for physical material non-linearity popup.stage_title Head Kushnir Roman Mykhailovych, Popovych Vasyl Stepanovych, Registration Date 15-02-2011 Organization Pidstryhach Institute of Applied Problems of Mechanics and Mathematics NAS of Ukraine popup.description2 The mathematical methods of thermal and thermostressed states of structurally inhomogeneous states of inhomogeneous bodies considering thermosensitivity of their materials and presence of inclusions, holes and cracks under different kind of thermal and power loading have been analyzed. The analytical-numerical and numerical procedures of: solving the quasistatic and static thermoelasticity problems for homogeneous and layer thermosensitive bodies of canonical form under complex heat exchange with the surroundings, which based on utilization of the generalized functions, method of step-by-step linearization, spline-approximations and constructed Green's functions distribution technique; determination of thermoelastic state of the bodies with holes, cracks and strip inhomogeneities and calculation of the generalized and dynamic stress-intensity factors under antiplane deformation with use of the refined formulas of the Laplace transform inversion and method of boundary integral equations; calculation of thermal end thermoelastic states of piecewise-homogeneous body by adapted method of near boundary elements have been developed. The procedure of reducing the problems on the stressed state and limit equilibrium of thickness-ingomoheneous elastico-plastic spherical and cylindrical shells with through and surface cracks to a system of singular integral equations has been proposed, the numerical methods of their solution including. For particular structurally-inhomogeneous bodies the influence of external load, geometric and physico-mechanical characteristics on parameters of thermal and stress-strain states has been studied. The results of studies are urgent for machine and device building, energetics, geomechanics, development of new technologies of welding and local surface heat treatments, predicting the strength of structure elements. Product Description popup.authors Басса Н.М. Бачинський В.І. Васільєв К.В. Вовк О.М. Гарматій Г.Ю. Горечко Н.О. Журавчак Л.М. Кушнір Р.М. Махоркін І.М. Николишин Т.М. Попович В.С. Процюк Б.В. Процюк Ю.Б. Ростун М.Й. Соляр Т.Я. Янішевський В.І. popup.nrat_date 2020-04-02 Close