https://www.elibrary.ru/title_about_new.asp?i
1605-8119
Materials physics and mechanics
26
1
2016
1-100
RAR
RUS
1-4
National Research Moscow State University of Civil Engineering
Akimov
Moscow, Russia
National Research Moscow State University of Civil Engineering
Aslami
Moscow, Russia
Theoretical foundations and applications of multilevel discrete and discrete-continual methods of local structural analysis
The distinctive paper is devoted to wavelet-based discrete and discrete-continual methods of local structural analysis. Theoretical foundations of methods, corresponding program implementations, one-dimensional and two-dimensional verification samples are under consideration.
local structural analysis; wavelet-based discrete method; discrete-continual method
https://mpm.spbstu.ru/article/2016.46.1/
MPM126_01_akimov.pdf
RAR
RUS
5-8
National Research Moscow State University of Civil Engineering
Akimov
Moscow, Russia
National Research Moscow State University of Civil Engineering
Negrozov
Moscow, Russia
Application of unstructured approximating meshes in discrete-continual finite element method of structural analysis
This paper is devoted to actual problems of application of various approximating meshes in discrete-continual finite element method of analysis of structures with regular (constant or piecewise constant) physical and geometrical parameters in one dimension (direction). Unstructured approximating meshes (with the use of discrete-continual finite elements with quadrilateral or triangular cross-sections) are under consideration. Besides, basic introduction to discrete-continual finite element method is presented as well
structural analysis; discrete-continual finite element method; unstructured approximating meshes
https://mpm.spbstu.ru/article/2016.46.2/
MPM126_02_akimov.pdf
RAR
RUS
9-15
Technical University of Košice
Ali
Košice, Slovakia
Kazan National Research Technical University (A.N. Tupolev Kazan Aviation Institute)
Isaev
Kazan, Russia
0000-0002-1196-8004
Peter the Great St. Petersburg Polytechnic University
Vatin
N.I.
St.Petersburg, Russia
Development of modified formulae for detection the welding stresses in the welded steel cross-sections
Local heating and high temperatures connected with the welding processes cause temporary thermal stresses and permanent plastic strains, which can reduce the strength of the welded cross.section. Different analytical methods, experimental methods and empirical formulae were developed to determinate the stresses created during the welding works [1-5]. This paper deals with the analysis of some of these methods and presents Modified empirical formulae, which were developed by the author during research activities about the determination and distribution of welding stresses in the web and the flanges of welded I-cross-sections.
welded steel cross-sections; welding stresses; modified empirical formula
https://mpm.spbstu.ru/article/2016.46.3/
MPM126_03_ali.pdf
RAR
RUS
16-18
IPME RAS
Atroshenko
St.Petersburg, Russia
Scale levels of dynamic translational fracture mechanisms
An experimental study of the morphology of the spall split of the pearlite steels was carried out. The distribution of elements of spall fracture on the scale for the longitudinal and transverse components was shown.
morphology of the spall split of the pearlite steels; distribution of elements of spall fracture
https://mpm.spbstu.ru/article/2016.46.4/
MPM126_04_atroshenko.pdf
RAR
RUS
19-22
IPME RAS
Atroshenko
St.Petersburg, Russia
IPME RAS
Gribanov
St.Petersburg, Russia
Qualimetric evaluation technique of fracture resistance of metals under shock loading
A study of the quality of the aluminum ring specimens tested at different modes of high-speed loading of magnetic-pulse method was carried out. Quality evaluation of dynamically loaded metallic materials was held by the procedure of qualimetric estimation for fracture resistance of metals tested by magnetic pulse method.
metals; shock loading; fracture resistance; qualimetric evaluation technique
https://mpm.spbstu.ru/article/2016.46.5/
MPM126_05_atroshenko.pdf
RAR
RUS
23-25
Chelyabinsk State University
Mayer
Chelyabinsk, Russia
IPME RAS
Atroshenko
St.Petersburg, Russia
Chelyabinsk State University
Borodin
Chelyabinsk, Russia
Experimental and numerical investigations of the scale levels in spall fracture of D16 aluminum
Results of microstructural investigation of the D16 aluminum spall surface are presented in comparison with the numerical simulation of the fracture process. A fracture model based on the plasticity driven growth of voids is used in simulation. Different scale levels of fracture are discussed, and the main level of fracture is attempted to be allocated, which is about 1-5 micrometers in the investigated case.
D16 aluminum; spall fracture; microstructural investigation
https://mpm.spbstu.ru/article/2016.46.6/
MPM126_06_mayer.pdf
RAR
RUS
26-29
IPME RAS
Atroshenko
St.Petersburg, Russia
Saint-Petersburg State Economic University
Korolyov
St.Petersburg, Russia
Peter the Great St. Petersburg Polytechnic University
Didenko
St.Petersburg, Russia
Evaluation of physico-mechanical properties of high-chromium tool steels modified with Harrington method
The qualimetric evaluation of high-chromium tool steels with application of modified desirability function was performed. It was shown that high qualitative performance was demonstrated by low carbon steels additionally alloyed with rare-earth metals, as well as optimally heat-treated steels. The methodologies for assessing the economic characteristics of high-chromium tool steels were proposed. The first technique is an assessment of the production cost of high-chromium tool steels in its early stages. The second technique is a value analysis of technological equipment, whose manufacturing needs high-chromium tool steels.
high-chromium tool steels; alloying; heat treatment; the desirability function
https://mpm.spbstu.ru/article/2016.46.7/
MPM126_07_atroshenko.pdf
RAR
RUS
30-32
Kazan Federal University
Abdrakhmanova
Kazan, Russia
Kazan Federal University
Sultanov
Kazan, Russia
Numerical modelling of deformation of hyperelastic incompressible solids
In this paper the model of investigation of large deformations of solids for incompressible elastic materials is considered. The constitutive equations are derived from the potential of elastic deformation. Calculation algorithm is based on the linearized equation of virtual work, defined to actual state. To account incompressibility a penalty method is applied. Numerical implementation is based on the finite element method. The deformation of a square plate with round neckline is provided.
incompressible elastic solids; numerical modelling of deformation
https://mpm.spbstu.ru/article/2016.46.8/
MPM126_08_abdrakhmanova.pdf
RAR
RUS
33-37
Institute of the Applied Mechanics Russian Academy of Science
Bakulin
Moscow, Russia
The influence of elasticity of the filler material on stresses in the layers of three-layered shells of rotation under the action of local loads
Stresses in the filler material of three-layer cylindrical shell with orthotropic loadbearing layer of structural fiberglass and lightweight filler type polyurethane foam were investigated. The effect of elasticity of the filler material on the stresses in the bearing layers of three-layered shells of rotation under the action of the ring load is shown. The given results enable to estimate the error of the widespread assumptions regarding the cross noncompressibility of the filler in the calculation of three-layered shells.
three-layer cylindrical shell; orthotropic load; stresses
https://mpm.spbstu.ru/article/2016.46.9/
MPM126_09_bakulin.pdf
RAR
RUS
38-41
Institute for Problems of Mechanical Engineering of the RAS
Bratov
St.Petersburg, Russia
Chelyabinsk State University
Borodin
Chelyabinsk, Russia
Non-equilibrium features of continuous recrystallization process at severe plastic deformation of copper
It is shown that separation of scalar dislocation density into two parts, giving densities of mobile and immobile dislocations, is providing a possibility to predict continuous dynamic recrystallization (DRX) process caused by severe plastic deformation of metallic materials. The proposed approach is making it possible to predict a rather extent set of material microstructure properties that can be measured experimentally, based on a minimum set of "tuning" parameters. Received predictions are verified by comparison to experimental results and predictions received using another known dislocation plasticity and dynamic recrystallization models.
copper; severe plastic deformation; continuous dynamic recrystallization
https://mpm.spbstu.ru/article/2016.46.10/
MPM126_10_bratov.pdf
RAR
RUS
42-44
Chelyabinsk State University
Borodin
Chelyabinsk, Russia
Saint Petersburg State University
Selyutina
Nina
St.Petersburg, Russia
St.-Petersburg State University
Petrov
St.Petersburg, Russia
Chelyabinsk State University
Mayer
Chelyabinsk, Russia
Dependence of relaxation times on the material microstructure for different mechanisms of plasticity
On the basis of the Maxwell model for very viscous liquid we derive equations for definition of characteristic relaxation times that are used in the integral criterion of plasticity. Relaxation times are constants for the material with current microstructure and do not depend on the features of the deformation process, but they change at the change of the main deformation mechanism of plasticity. We proposed the equations that connect the characteristic time of plastic relaxation with the scalar dislocation density and grain size of the material for dislocation plasticity and creep consequently.
mechanisms of plasticity; material microstructure; relaxation time
https://mpm.spbstu.ru/article/2016.46.11/
MPM126_11_borodin.pdf
RAR
RUS
45-48
Ufa State Aviation Technical University
Valiev
R.Z.
Ufa, Russia
Foundation Russian Academy of Sciences, Institute of Applied Mechanics RAS
Karnet
Moscow, Russia
Foundation Russian Academy of Sciences, Institute of Applied Mechanics RAS
Kochurov
Moscow, Russia
Foundation Russian Academy of Sciences, Institute of Applied Mechanics RAS
Parshina
Moscow, Russia
Foundation Russian Academy of Sciences, Institute of Applied Mechanics RAS
Semenov
Moscow, Russia
Foundation Russian Academy of Sciences, Institute of Applied Mechanics RAS
Yumaschev
Moscow, Russia
Foundation Russian Academy of Sciences, Institute of Applied Mechanics RAS
Yanovsky
Atomic force microscopy and physical - mechanical properties of new elastomer composites
The results of a comprehensive study of the new composites filled with modified micro and nanoscale shungit are presented. Correlation characteristics of the surface structure of elastomers and their physical - mechanical properties are deduced.
elastomer composite; surface structure; physical - mechanical properties
https://mpm.spbstu.ru/article/2016.46.12/
MPM126_12_valiev.pdf
RAR
RUS
49-52
Bauman Moscow State Technical University
Vinogradov
Moscow, Russia
Institute of the Applied Mechanics Russian Academy of Science
Bakulin
Moscow, Russia
Experimental and analytical investigation of the stressed strained state of a cylindrical shell under the action of concentrated radial forces
Experimental study of deformation of a cylindrical shell by radial forces and comparison with the analytical solution are being performed.
cylindrical shell; concentrated radial forces; stressed strained state
https://mpm.spbstu.ru/article/2016.46.13/
MPM126_13_vinogradov.pdf
RAR
RUS
53-56
“Vedeneev VNIIG” JSC
Vitokhin
St.Petersburg, Russia
“Vedeneev VNIIG” JSC
Le-Zakharov
St.Petersburg, Russia
“Vedeneev VNIIG” JSC
Fedorov
St.Petersburg, Russia
“Vedeneev VNIIG” JSC
Tseytlin
St.Petersburg, Russia
Mathematical modeling of the stress-strain state of concrete dam and rock foundation caused by tectonic fault slip
The multilevel finite element technique for determination of dam-foundation stressstrain state under tectonic fault slip is developed. Computational model includes an active fault, dam and foundation. The methodology is used to calculate stress-strain state of concrete structures and foundation of Sayano-Shushenskaya HPP under Borusskiy fault presumable slip.
tectonic slip; concrete dam; rock foundation; stress-strain state; multilevel finite element technique
https://mpm.spbstu.ru/article/2016.46.14/
MPM126_14_le-zakharov.pdf
RAR
RUS
57-60
St.Petersburg Transport University
Vorobyova
St.Petersburg, Russia
St.Petersburg Transport University
Nesterova
St.Petersburg, Russia
St.Petersburg Transport University
Nikonova
St.Petersburg, Russia
St.Petersburg Transport University
Uzdin
St.Petersburg, Russia
St.-Petersburg State University
Fedorova
St.Petersburg, Russia
Taking account of damping in estimating structure earthquake stability
Methods of building damping matrixes for estimating earthquake structure stability are considered. Modal expansion and eigenvalue problem taking into account the structure of eigen vector matrixes are analyzed.
estimating earthquake structure stability; damping matrixes
https://mpm.spbstu.ru/article/2016.46.15/
MPM126_15_uzdin.pdf
RAR
RUS
61-65
Saint Petersburg State University of Architecture and Civil Engineering (SPSUACE)
Yun
St.Petersburg, Russia
Saint Petersburg State University of Architecture and Civil Engineering (SPSUACE)
Glukhikh
St.Petersburg, Russia
Research of the stress-strain state of connections of timber structural elements on metal plates
In this paper we have suggested original design of connection based on metal plates which includes an additional nail-plate which allows increasing the bearing capacity of the connection (up to 31.15 %). We have substantiated the method of rational design and calculation of the bearing capacity of the connection on metal plates according to the finite element method by using the Ansys 15.0 software.
metal plates; nail-plate; FEM; stress-strain state.
https://mpm.spbstu.ru/article/2016.46.16/
MPM126_16_glukhikh.pdf
RAR
RUS
66-69
Admiral Makarov State University of Maritime and Inland Shipping
Goloskokov
St.Petersburg, Russia
Numerical-analytical method of calculating of the shallow shell rectangular in plane reinforced by ribs of variable stiffness
The analytical solution of a boundary value problem for a differential equation of deforming shallow shell rectangular in plane reinforced by ribs of variable stiffness is received. The decision is presented in the form of a series from combinations of regular and special discontinuous functions. This decision leads to quickly converging series and simple computing algorithm. The example of calculation of a reinforced cylindrical panel is given.
shallow shell rectangular; differential equation of deforming; numerical-analytical method of calculating
https://mpm.spbstu.ru/article/2016.46.17/
MPM126_17_goloskokov.pdf
RAR
RUS
73-76
Perm State University
Demin
Perm, Russia
University of Sydney
Kondyurin
Sydney, Australia
Perm State University
Terpugov
Perm, Russia
Computer and stratospheric flight simulation of space experiment on curing of epoxy composite
Curing technology of composite materials directly in space environment can be used for creation of large space structures in Earth orbit, on Moon, on Mars and other celestial bodies in future. The curing will be occurred under free space conditions such as high vacuum, temperature variations, cosmic radiation, microgravity and others. The space factors can significantly influence on the curing process and final properties of the composite. A space experiment on curing of the composite is complicate. At first stage, a laboratory experiment, computer modelling and stratospheric flight experiments are used for investigation of curing process. The results show a possibility of the curing and first prepreg of the composite was cured in stratosphere.
composite materials; curing technology; computer and stratospheric flight simulation
https://mpm.spbstu.ru/article/2016.46.18/
MPM126_19_demin.pdf
RAR
RUS
77-80
South Ural State University (National Research University)
Ermakova
Chelyabinsk, Russia
Use of additional finite element method for nonlinear analysis of bar systems at limit states
This paper considers some problems connected with description of limit states of the plane bar FE and special bar one for nonlinear analysis of reinforced concrete structures by means of developed AFEM. These problems are connecting with necessary of taking account of reinforcement and changing physical nonlinear properties of these FEs when this method is used.
reinforced concrete structures; additional finite element method; limit state; reinforcement
https://mpm.spbstu.ru/article/2016.46.19/
MPM126_20_ermakova.pdf
RAR
RUS
81-84
St.-Petersburg State University
Zaychenko
St.Petersburg, Russia
St.-Petersburg State University
Lukin
St.Petersburg, Russia
St.-Petersburg State University
Morozov
St.Petersburg, Russia
Dynamic deformation and fracture of thin metal ring samples under magnetic pulse loading
This paper presents an analysis of the equations describing electromagnetic oscillations in coupled coil and ring circuits. Based on this analysis, an equation had been established that allows determining the ring current, which was calculated for a wide range of capacitor voltages. Two experimental methods for determination of the current and Ampere force in a ring sample, as well as the radial pressure on its internal surface and its circumferential stress were developed and implemented.
thin metal ring samples; magnetic pulse loading; dynamic deformation and fracture
https://mpm.spbstu.ru/article/2016.46.20/
MPM126_21_zaychenko.pdf
RAR
RUS
85-88
Peter the Great St. Petersburg Polytechnic University
Skripnuk
St.Petersburg, Russia
ITMO Univesity
Ulitin
St.Petersburg, Russia
Technical and economic substantiation of permafrost thermal stabilization technology under global warming conditions
The article contains technical and economic substantiation of the permafrost thermal stabilization technology in the face of global warming. The main methods of permafrost grounds thermal stabilization are analyzed and the method of technical and economic assessment of the technology chosen is proposed. The latter proposed method implies inclusion of random values under global warming conditions.
permafrost thermal stabilization; permafrost soils; economic substantiation of the thermal stabilization technology
https://mpm.spbstu.ru/article/2016.46.21/
MPM126_22_skripnuk.pdf
RAR
RUS
89-92
ITMO Univesity
Ulitin
St.Petersburg, Russia
Peter the Great St. Petersburg Polytechnic University
Chernogorskiy
St.Petersburg, Russia
Peter the Great St. Petersburg Polytechnic University
Shvetsov
St.Petersburg, Russia
Technical and economic substantiation construction methods on frozen soils in the face of global warming
The article is devoted to the substantiation of construction methods on frozen soils in the face of global warming. In the article, we analyze with the help of modern computer methods the principles of the use of soils as foundation structures, and propose a methodology for technical and economic substantiation of the choice of the most appropriate and effective of construction methods.
global warming; frozen soils; substantiation of construction methods
https://mpm.spbstu.ru/article/2016.46.22/
MPM126_23_ulitin.pdf
RAR
RUS
93-96
Bauman Moscow State Technical University
Renev
Moscow, Russia
APM Ltd.
Prokopov
Korolev, Moscow region, Russia
Development of an algorithm for solving problems of fracture mechanics
The implementation of the fundamentals of fracture mechanics in Russian CAx system is discussed. Implementation of two algorithms that use basic fracture mechanics parameters (stress intensity factor (SIF) is calculated using analytical method), is presented. The algorithms use the concept of finite element method (FEM). Simulation of fracture process of the computational model is made by "Birth and Death" method. The developed algorithm eliminates the disadvantages inherent in foreign CAx systems.
fracture mechanics; algorithm for solving problems
https://mpm.spbstu.ru/article/2016.46.23/
MPM126_24_renev.pdf
RAR
RUS
97-100
St.-Petersburg State University
Utkin
St.Petersburg, Russia
Effects of spall fracture and structural-time approach
Using structural-time approach spall strength is studied in a wide range of loading rates. The effects detected in experiments on the spallation in the nanosecond range of loading durations are considered. The possibility of describing these effects using structural-time approach is shown.
spall fracture; structural-time approach
https://mpm.spbstu.ru/article/2016.46.24/
MPM126_25_utkin.pdf