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Information × Registration Number 0310U002132, 0108U010157 , R & D reports Title Modeling of complexity of defect structures of radiation materials popup.stage_title Аналітичне дослідження складності та межі текучості довільних ієрархічних структур дефектів радіаційного матеріалу Head Vorobjov Gennadij, Registration Date 08-02-2010 Organization Sumy State University popup.description2 To date, construction of a complete picture of the evolution of the defective structure has been restrained because of lack of understanding its hierarchical nature. Assuming that each structural level corresponds to a horizontal line of the hierarchical tree (or an appropriate level of minimums of the thermodynamic potential), a microscopic picture of the system's evolution can be represented within the fractal kinetics of the hierarchical structures. However, one important circumstance should be kept in mind. The approach based on the using continuous parametric space implies infinitely large number of levels, nature of the relations between them is not sufficient, and only a tree structure is important. In our case, the number of structural levels (corresponding to dislocations, disclinations, grains, their conglomerates, samples etc) is small and nature of their relationship plays huge role. Therefore, a complete description of the picture of defective structures' evolution can not be reached within the analytical approach and numerical methods should be used, within which the deformation field at this level is determined by the common way, and relation with the next structural level is defined by boundary conditions. Product Description popup.authors Борисюк Вадим Миколайович Вайленко Анна Сергіївна Шуда Ірина Олександрівна popup.nrat_date 2020-04-02 Close