Физика список научных статей
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Mathematical Modeling of Three-dimensional Stress-strain State of Homogeneous and Composite Cylindrical Axisymmetric Shells
The study is devoted to the application of the asymptotic splitting method for solving static problems of deformation of homogeneous isotropic and composite cylindrical shells. The problem of deformation of a composite cylindrical shell subjected to an internal axisymmetric load is considered. The...
2024 / Arseniy G. Gorynin, Gleb L. Gorynin, Sergey K. GolushkoScopusВАКRSCIESCI -
Study of New Composite Materials Based on Epoxy Resin with Photoluminescence Effect
Strontium aluminate doped with europium with various particle sizes was added to epoxy resins ED-20 and Crystal 85-5 in a mass concentration from 0% to 17%. Mechanical tests for three-point bending and instrumental indentation were carried out. The relationship between modulus of elasticity and...
2024 / Tatyana A. Brusentseva, Stanislav E. LukinScopusВАКRSCIESCI -
Computer-aided Design of Polymer-based Composites Using Multi-scale Models
The study is devoted to computer-aided design of particulate polytetrafluoroethylene-based composites for increasing their thermal conductivity values (as much as possible) with minimal deterioration of the mechanical properties. To solve the issue, an algorithm has been developed and applied using ...
2024 / Sergey V.Panin, Boris A. Lyukshin, Nataliya Y. Grishaeva, Svetlana A. Bochkareva, Iliya L.PanovScopusВАКRSCIESCI -
Modelling of Residual Stresses and Distortions of the Wall on a Substrate Built by Wire-Arc Surfacing
To study the arising of technological distortions and residual stresses in structures created by wire-arc surfacing, it is proposed to consider a wall consisting of ten layers deposited on a substrate. A wall is deposited with and without layer-by-layer forging on a fixed steel plate with AISI 308...
2024 / Dmitriy S. Dudin, Ilya E. Keller, Gleb L.Permyakov, Dmitriy N.TrushnikovScopusВАКRSCIESCI -
Specific Damping Capacity of Layered Structures with a Layer of Dissipative Metamaterial under Quasi-Static and Dynamic Impacts
The article presents the results of the analysis of mechanical behavior of mechanical layered structures with auxetic metamaterials interlayers under dynamic and quasi static loading. These structures can be used in lightweight structures for damping dynamic loads in transport and aerospace...
2024 / Vladimir A. Skripnyak, Maxim O. Chirkov, Vladimir V. SkripnyakScopusВАКRSCIESCI -
Influence of Nanomodifying Additives and Strengthening Phase on the Structure and Properties of Laser Coating of Porous Titanium
The results of an experimental study of the influence of nanomodifying additives on the structure and mechanical properties of coatings during laser surfacing of a composite powder with a strengthening phase on porous titanium are presented. Titanium alloy of the Ti–V–Al system with a strengthening ...
2024 / Ksenia A. Skorokhod, Anatoly N. Cherepanov, Aleksander G. Malikov, Danila A. KrasnovScopusВАКRSCIESCI -
Current State and Development of the Theory of Curing High-Energy Composite Polymer Materials
Within the framework of a two-component medium, based on a phenomenological approach, a system of governing equations has been developed that describes the thermomechanical behavior of an elastomer highly filled with fine particles under conditions of a curing reaction (vulcanization) with adhesive ...
2024 / Konstantin A. ChekhoninScopusВАКRSCIESCI -
Comparison of the Response of a Homogeneous Medium to the Dynamic Impact of Single and Segmented Rods
A series of calculations of the interaction of single and segmented rods with massive blocks and plates of finite thickness have been performed. Comparisons with experimental data for verification of material parameters under dynamic conditions have been made. Both qualitative and sufficiently...
2024 / Alexander E. Kraus, Ivan I. Shabalin, Andrey E. Buzyurkin, Evgeny I. KrausScopusВАКRSCIESCI -
Microstructural and Phase Transformations in Aluminium-Lithium Alloys after Laser Welding
The article shows the results of research on microstructural and phase transformation in aluminium-lithium alloys caused by laser welding followed by heat processing based on quenching and artificial aging. The microstructure and phase composition were examined with the help of synchrotron X-ray...
2024 / Aleksander G. Malikov, Or E. Vitoshki, Evgeny V. Karpov, Konstantin E. Kuper, Mariya I. Mironova, Alexey P. ZavialovScopusВАКRSCIESCI -
АНАЛИЗ КОНВЕКТИВНОГО ТЕПЛООБМЕНА И ЕГО ВИДЫ
конвективным теплообменом или теплоотдачей называется процесс переноса теплоты между поверхностью твердого тела и окружающей средой (газ или жидкость). При этом перенос теплоты осуществляется одновременным воздействием теплопроводности и конвекции. По природе возникновения, конвективная...
2024 / Пириева Г.С. -
Photometry of Transient 2023lmj, an UGSU Cataclysmic Variable Star
I present a photometric study of the new UGSU cataclysmic variable star discovered as the transient 2023lmj. 160 V-band observations of the object were obtained on JD 2460120-2460142. The period of superhumps is found to be 0.06033d. An overall light curve and average superhump profile are shown.
2024 / Samokhvalov A. -
ИССЛЕДОВАНИЕ СТАТИЧЕСКИ НЕОПРЕДЕЛИМЫХ НАГРУЗКОК НА ПЛАСТИНЫ ОСЕСИММЕТРИЧНЫЕ СОБСТВЕННОЙ ЧАСТОТЕ НА СТАТИЧЕСКИ НАГРУЖЕННЫХ КОЛЬЦЕВЫХ ПЛАСТИНАХ
В данной статье исследуется статически неопределимые нагрузки на теории тонких и толстых пластин по таким теориям как Миндлина, Кармона, Кенинг и др. которые выполняется в различных степенях по-разному и комбинируются с граничными условиями.
2023 / Нарбеков Н.Н. -
THEORETICAL PRINCIPLES AND BASE CRITERIA FOR MEASURING THE TEMPERATURE OF A SUBSTANCE
The degree of heating is described, which is determined by the internal kinetic energy generated by the thermal motion of molecules through the temperature of the body. In practice, it will be possible to measure the temperature of bodies only with the help of comparing the heating of one with...
2023 / Yusupov A.R. -
THERMOELECTRIC THERMOMETERS WITH AUTOMATIC TEMPERATURE CONTROL FOR SCIENTIFIC PURPOSES
The thermoelectric method of temperature measurement is based on the formation of EDF under the influence of heat in conductors of a special composition. Thermoelectric thermometers (thermoparas) are widely used in various areas of the technique and in scientific and research work-in the...
2023 / Yusupov A.R. -
THE USE OF SPECTRAL INSTRUMENTS AND ANALYSIS METHODS IN BIOLOGICAL, BIO-CHEMICAL, MICROBIOLOGICAL, GEOLOGICAL AND THERMO-TECHNOLOGICAL RESEARCH
The process of thermal radiation consists in the propagation of the internal energy of a radiating body in the manner of electromagnetic waves. When these waves are absorbed by other bodies, they are again reflected back into thermal energy. The bodies propagate electromagnetic waves of wavelengths ...
2023 / Yusupov A.R. -
CONSTRUCTION MATERIALS INDUSTRY-BASIC CONCEPTS ABOUT TECHNICAL DIMENSIONS
In a detail drawing, the inner, outer or stepped size represents an abstract type of size, and when processing it on the defining surfaces, the size changes: it becomes larger, smaller or remains unchanged, depending on which it can be identified. When laying a scale, the detail should be...
2023 / Yusupov A.R. -
THE USE OF LASERS IN METROLOGY
Quantum amplifiers and generators (lasers) are widely used in communication techniques, in metrology, in the creation of new technological J arrays of material processing, in medical machines. They are being used as standards of Metrological repeatability and provide expression of the second in...
2023 / Yusupov A.R. -
Как биополимер (белок) сворачивается в уникальную 3D-структуру?
Обсуждается современное состояние проблемы фолдинга белков и других биополимеров. Детализируется понятие многомерной поверхности потенциальной энергии и поверхности свободной энергии для линейных полимеров с учетом топологии конфигурационного пространства и наличия элементов симметрии относительно...
2023 / Шайтан Константин ВольдемаровичWOSВАКRSCI -
Исследование напряженного состояния ножей из труднообрабатываемых сталей после шлифования
Актуальность и цели. Ножи из труднообрабатываемых сталей используются в широкой номенклатуре изделий общего и специального машиностроения. К ним предъявляются высокие требования по геометрической точности поверхностей и характеристикам физико-механических свойств поверхностного слоя. Это...
2023 / Татьяна Николаевна Иванова, Геннадий Васильевич Козлов, Александр Юрьевич МуйземнекВАК -
Using FEATool Multiphysics software for CFD Education
Numerical simulations of two-dimensional viscous and inviscid flows with FEATool Multiphysics package are presented. Three examples under consideration are as follows: 1) the laminar compressible flow over a backward facing step, 2) the inviscid supersonic flow over a bump in a channel, 3) the...
2024 / Alexander G. KuzminВАК