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Information × Registration Number 0224U002430, 0122U001447 , R & D reports Title Development of the theory of thermoplasticity and development of algorithms for solving boundary value problems taking into account the parameters of the type of stress state and damage to the structure of the material during deformation popup.stage_title Head Halishyn Oleksandr Z., д.т.н. Registration Date 14-02-2024 Organization S.P. Tymoshenka Institute of Mechanics of the National Academy of Sciences of Ukraine popup.description2  Algorithms for solving non-axisymmetric boundary value problems of thermoplasticity have been created, taking into account the parameters of the type of stress state and loosening of the material during plastic deformation. An algorithm and a method for solving initial-boundary problems of physically nonlinear deformation and damage of flexible hollow shells of complex shape made of materials with deformation characteristics that depend on the type of load have been created. Algorithms for solving problems for spatial bodies, plates and shells made of materials with shape memory and a variant of the method of component splitting based on spline approximations have been developed. The use of developed algorithms in calculation methods allows for a more detailed investigation of the condition of structural elements, to evaluate the structure of the material under working and extreme loads, to reduce their material capacity and to predict resource under different operating modes. Product Description popup.authors Babeshko Maiia O. Boitchenko Oksana A. Winogradova Larysa B. Halishyn Oleksandr Z. Lakiza Ruslana V. Savchenko Vitalii H. Sklepus Serhii M. Steblyanko Pavlo O. Tkachenko Neonila Ye. Tormakhov Mykola M. popup.nrat_date 2024-02-14 Close