Search academic texts

Information × Registration Number 0222U001791, 0119U103519 , R & D reports Title Investigation of the behavior of different structure composite materials (reinforced by short fibers and layered) and shell structures made of them at conditions of compressive loadings popup.stage_title Head Nazarenko Volodymyr M., Registration Date 03-02-2022 Organization S.P.Timoshenko Institute of Mechanics popup.description2 The boundary effect in the vicinity of the surface load of the layered composite material and the near-surface loss of stability in its structure in the inhomogeneous subcritical state associated with the boundary effect have been studied. The case of imperfect contact between layers is considered, which is modeled by a periodic system of interlayer cracks in the form of a mathematical section with stress-free edges. The influence of crack size on the attenuation length of the edge effect, critical loads and forms of stability loss has been studied. The method of grids based on the modified variational-difference approach is used for numerical solution of the problem. The computational experiment uses a sequential and parallel algorithm of the Kholetsky method to solve a system of linear algebraic equations and a method of iterating a subspace to solve a generalized problem on eigenvalues. Product Description popup.authors Bystrov Victor M Velichko Larisa G Dekret Volodymyr A Dovzhik Mikhailo V Zhukova Nataliia B Zagorodniuk Olena M Zelenskii Valerii S Kipnis Oleksandr L. Martynova Liudmila I Nazarenko Volodymyr Myhaylovych Semenyuk Mikola P TSiruk Sergii A Chishchevyi Volodymyr I popup.nrat_date 2022-03-09 Close