Results 11 to 20 of about 5,928,722 (258)

Effects of Kerr nonlinearity in physical unclonable functions [PDF]

open access: yes, 2022
We address the question of whether the presence of Kerr nonlinearity in multiple-scattering optical media offers any advantage with respect to the design of physical unclonable functions.
Georgios M. Nikolopoulos (14364384)
core   +2 more sources

Regression dependences in bending reinforced concrete beam with cracks

open access: yesCurved and Layered Structures, 2022
The work is devoted to determining the stress parameters of flexible reinforced concrete beams with cracks. The problem is solved using LIRA-SAPR using beam finite elements, taking into account the nonlinear relationship between deformation and stress in
Nuguzhinov Zhmagul   +5 more
doaj   +1 more source

Physically nonlinear shell deformation based on three-dimensional finite elements

open access: yesMagazine of Civil Engineering, 2022
The aim of the study is to determine the stress-strain state of the shell under step loading beyond the elastic limit. At the loading step, relations between strain increments and stress increments are obtained without accepting the hypothesis of a ...
Klochkov Yury   +4 more
doaj   +1 more source

Parameter differentiation method in solution of axisymmetric soft shells stationary dynamics nonlinear problems [PDF]

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2021
An algorithm of axisymmetric unbranched soft shells nonlinear dynamic behaviour problems solution is suggested in the work. The algorithm does not impose any restrictions on deformations or displacements range, material properties, conditions of fixing ...
Ekaterina A. Korovaytseva
doaj   +1 more source

Dynamics of a physically nonlinear viscoelastic cylindrical shell with a concentrated mass [PDF]

open access: yesИнженерно-строительный журнал, 2019
It is known that the theory of linear and nonlinear elastic plates and shells is the most developed part of the theory of elasticity. In this area, the necessary equations are obtained and the methods to solve them are developed.
D.A. Khodzhaev   +2 more
doaj   +1 more source

Effort analysis of the reinforced concrete deep beam of very high strength structural materials [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2016
The paper presents an analysis of the influence of high-strength concrete and reinforcing steel on the effort of the rectangular reinforced concrete deep beams taking into account physical nonlinearity of structural materials: concrete and reinforcing ...
Waldemar Cichorski, Adam Stolarski
doaj   +1 more source

Geometric nonlinear analysis of thin elastic paraboloid of revolution shaped shells with radial waves

open access: yesRUDN Journal of Engineering Research, 2020
From the old ancient types of roof and dome construction, various forms of shells have been discovered which attract special attention. A shell is a structure composed of sheet material so that the curvature plays an important role in the structural ...
Mathieu Gil-oulbé   +3 more
doaj   +1 more source

Boundary value problems of integrodifferential equations under boundary conditions taking into account physical nonlinearity

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2023
When solving integrodifferential equations under boundary conditions, taking into account physical nonlinearity, a broad class of boundary-value problems of oscillations arises associated with various boundary conditions at the edges of a flat element ...
A.Zh. Seitmuratov   +3 more
doaj   +1 more source

Analysis of dynamic displacement of reinforced concrete deep beams made of high strength concrete Part I: Analysis of dynamic displacement of a reinforced concrete deep beam made of high strength C100 grade concrete [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2018
The work presented is a three-part set of studies containing a comparative analysis of the displacement state of rectangular concrete deep beams made of concrete of different classes of very high strength, loaded dynamically. The analysis was carried out
Waldemar Cichorski
doaj   +1 more source

Nonlinear deformation of axisymmetrically loaded rotation shell based on FEM with different variants of definitional equations [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2022
A curvilinear finite element of the median line of an axisymmetrically loaded shell of revolution with a stiffness matrix of $8{\times} 8$ size is used when choosing nodal unknowns in the form of displacements and their first derivatives is used.
Dzhabrailov, Arsen Sh.   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy