Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Pavel N. Ryabov"'
Autor:
Bogdan D. Zavolovich, Irina I. Bannikova, Valery V. Kostjuchenko, Pavel N. Ryabov, Aleksandra V. Dalechina
Publikováno v:
BICA
Due to its excellent soft tissue contrast, magnetic resonance imaging (MRI) is widely used for target delineation in stereotactic radiosurgery. However, because of a number of factors (inhomogeneity of the constant magnetic field, nonlinearity of the
Publikováno v:
Automatic Control and Computer Sciences. 51:614-620
The process of plastic flow localization in a composite material consisting of welded steel and copper plates under shear strain is considered. The mathematical model of this physical process is formulated. A new numerical algorithm based on the Cour
Publikováno v:
Communications in Nonlinear Science and Numerical Simulation. 101:105858
The aim of this paper is to develop an effective finite volume method for numerical simulation of the adiabatic shear bands (ASB) formation processes. A formation of ASB happens at high-speed shear strains of ductile materials. A numerical simulation
Publikováno v:
Journal of Physics: Conference Series. 2036:012025
Publikováno v:
AIP Conference Proceedings.
Numerical simulation of adiabatic shear bands formation processes on two-dimensional eulerian meshes
Publikováno v:
Journal of Physics: Conference Series. 1686:012035
In this work we suggest a mathematical model of motion of the elasto-plastic materials with nonlinear plasticity constitutive law; we also propose an effective numerical method for numerical simulations of such tasks on two-dimensional eulerian meshe
Autor:
Nikolay A. Kudryashov, Pavel N. Ryabov
Publikováno v:
Applied Mathematics and Computation. 286:171-177
The generalization of the Swift-Hohenberg equation is studied. It is shown that the equation does not pass the Kovalevskaya test and does not possess the Painleve property. Exact solutions of the generalized Swift-Hohenberg equation which are very us
Publikováno v:
Automatic Control and Computer Sciences. 49:508-513
The features of dissipative structure formation, which is described by the periodic boundary value problem for the Kuramoto–Sivashinsky equation, are investigated. A numerical algorithm based on the pseudospectral method is presented. The efficienc
Autor:
Pavel N. Ryabov
Publikováno v:
AIP Conference Proceedings.
The process of plastic flow localization in materials undergoing shear deformations is considered. Starting from mathematical model a new numerical approach, which is based on Courant-Isaacson-Rees scheme, that allows one to simulate fully localized
Autor:
Nikolay A. Kudryashov, Pavel N. Ryabov
Publikováno v:
Applied Mathematics and Computation. 232:1090-1093
The nonlinear evolution equation for describing the pattern formation processes on the semiconductor surfaces under ion beam bombardment is studied. The Painleve analysis of equation is considered. The new elliptic solution of this equation is obtain