Перегляд за автором "Ostapchuk, P.N."

Сортувати за: Порядок: Результатів:

  • Bias of basal dislocation loop in zirconium 
    Babich, A.V.; Ostapchuk, P.N. (Вопросы атомной науки и техники, 2021)
    An analytical expression for the elastic interaction energy of radiation point defects of the dipole type with the basal dislocation loop of the hcp metal is obtained using the Green's function method for hexagonal crystals ...
  • Diffusion evolution of a pore in bounded particle in a hydrogen atmosphere 
    Kopp, M.I.; Ostapchuk, P.N.; Yanovsky, V.V. (Вопросы атомной науки и техники, 2022)
    The problem of the diffusion evolution of a pore filled with molecular hydrogen in a spherical granule in a hydrogen medium is solved. The initial position of the pore is displaced relative to the center of the granule. A ...
  • Numerical calculation of the dislocation basis loop bias in hexagonal crystal 
    Babich, A.V.; Ostapchuk, P.N. (Вопросы атомной науки и техники, 2019)
    The diffusion fluxes of radiation point defects onto a circular base edge loop of zirconium in a toroidal reservoir are calculated numerically (by the finite difference method). Elastic interaction of point defects and ...
  • The elasticity theory problem for a hollow sphere with a displaced cavity center 
    Kopp, M.I.; Ostapchuk, P.N.; Yanovsky, V.V. (Вопросы атомной науки и техники, 2022)
    In this paper, the elastic state of a sphere is studied, inside which there is a spherical cavity (spherical pore) at an arbitrary distance from the center of the sphere. Expressions for the displacement components, strain, ...
  • The methods for the calculation of the elastic interaction of point defects with a dislocation loops in hexagonal crystals 
    Trotsenko, O.G.; Ostapchuk, P.N. (Вопросы атомной науки и техники, 2017)
    Green's function method is used for hexagonal crystals according to Lifshitz-Rosenzweig and Kröner. Analytical expressions have been derived for the energy of elastic interaction of radiation point defects with dislocation ...