Search academic texts

Information × Registration Number 0210U004055, 0106U000592 , R & D reports Title Models and Methods of Direct and Inverse Problems for the Investigation of Physical-Mechanical Processes in Anisotropic Multi-layer Structures with Residual Deformations and Defects popup.stage_title Head Nykolyshyn Myron Mykhaylovych; Povstenko Yuriy Zinoviyevych, Registration Date 05-02-2010 Organization Pidstryhach Institute for Applied Problems of Mechanics and Mathematics NASU popup.description2 Research object - lump-homogeneous, mnogosloynie, heterogeneous, termochutlivі deformіvnі solids; bodies with mnogosloynimi coverages; plates and shells with cracks and inclusions. The purpose of work is development of mathematical models and research methods: processes of diffusive type at heterogeneous, termochutlivih mechanical structures and bodies with mnogosloynimi coverages and the conditioned by these processes tense state; the tense-deformed state of plates and shells with cracks and defects, and also development of methods of determination of odno- and dvumernogo unstationary termonaprugenogo state of homogeneous and lump-homogeneous resilient bodies at incomplete information about the thermal loading. Methods of research of -metod direct integration of the differential evening of theory of resiliency and termoprugnostі, methods of integral transformations, methods of the integral evening, methods of regulyarizatsії, numeral methods. The developed method of direct integration of the differential evening of theory of resiliency and termoprugnostі in relation to construction of decisions of kvazistaticheskih tasks of resiliency and termoprugnostі for heterogeneous and termochutlivih bodies and bodies with angular point. The processes of accumulation of damages in bodies with thin mnogosloynimi and thick ceramic coverages at their thermal loading are explored. It is offered and developed theory of termoprugnostі on the basis of the generalized evening of heat conductivity with fractional derivative at times. The method of research of the revolted field of tensions, conditioned by the superficial and through pointed defects, is offered, and distributing of the remaining welded tensions in the thin-walled elements of constructions. Co-operation of kolіnearnih cracks is explored in arcuated plates and shells taking into account the contact of their banks and antiplosku deformation of resilient space with the system of hard band inclusions. The method of decision of tasks of determination of odno- is developed and dvumernogo unstationary thermal and the termonaprugenogo states of lump-homogeneous bodies at incomplete information about the thermal loading. The results of the conducted researches can be used for determination and research of the tense state of heterogeneous and termochutlivih elements of constructions which are exploited for actions of the intensive thermal and power loading in particular, in default of complete information about the thermal loading. Product Description popup.authors Шацький Іван Петрович Шевчук Віктор Анатолійович Ясінський Анатолій Васильович popup.nrat_date 2020-04-02 Close