https://www.elibrary.ru/title_about_new.asp?i 1605-8119 Materials physics and mechanics 51 2 2023 1-186
RAR RUS 1-20 National Institute of Technology Kurukshetra Kumar
Kurukshetra, Haryana, India
 National Institute of Technology Kurukshetra Angra
Haryana, India
 0000-0002-5648-6113 National Institute of Technology Kurukshetra Singh
Haryana, India
 Influence of rare earth elements on aluminium metal matrix composites: A review In view of the unique characteristics and diverse applications of composite materials; researchers across the world are focusing on the development of a variety of Metal-Matrix Composites (MMCs), particularly in the domain of Aluminium-based MMCs (AMMCs). The present research paper focuses on the study of the influence of rare earth elements (REEs) and rare earth oxides (REOs) on the Tensile Strength, Hardness, and Microstructure of AMMCs. Apart from the fraction, shape, and size of the reinforced particle, the fabrication methods also play a crucial role in the microstructure and performance of the composite. Stir casting and Powder metallurgy are the methods that are commonly used over the globe for processing of AMMCs due to their availability, simplicity, and low-cost production. During stir casting, the nature and characteristics of AMMCs largely depend upon geometrical parameters like impeller design and process parameters such as stirring speed, stirring time, and stirring temperature. However, in Powder Metallurgy, process parameters such as blending time, sintering temperature, and compact pressure have a significant effect on the performance of AMMCs. From previous studies, it has been observed that the tensile strength of AMMCs having REEs and REOs as reinforcement varies in the range of 26 MPa to 562 MPa, and the elongation during tensile tests enhanced up to 33.33 %. It is also observed that the hardness value of AMMCs with REEs and REOs particulates occurred in the range of 46 VHN to 260 VHN. From the survey of microscopic images, it is concluded that grain refinement and the formation of the useful compounds between aluminum matrix and rare earth particles helped in the enhancement of the mechanical properties of the AMMCs. It is also observed that the excessive use of reinforcement particles results in agglomeration that leads to a reduction in mechanical properties. 10.18149/MPM.5122023_1 aluminium metal matrix composites rare earth elements rare earth oxide mechanical properties microstructural properties https://mpm.spbstu.ru/article/2023.94.1/ 1-Vishal-Kumar%2C-Surjit-Angra%2C-Satnam-Singh.pdf
RAR RUS 21-26 Peter the Great St. Petersburg Polytechnic University Ignateva
St. Petersburg, Russia
 Peter the Great St. Petersburg Polytechnic University Krasnitckii S.A.
St.Petersburg, Russia
 113263 6701854079 0000-0001-9909-2950 Institute of Problems of Mechanical Engineering RAS Sheinerman Alexander
St.Petersburg, Russia
 0000-0003-0727-6352 Institute of Problems of Mechanical Engineering RAS Gutkin M. Yu.
St.Petersburg, Russia
 The finite element analysis of crack tolerance in composite ceramics A finite element simulation is employed to provide a thorough investigation of fracture tolerance in ceramic materials containing lamellar inhomogeneities. The opening mode crack initiated in matrix, inhomogeneity and at interphase boundary is considered in terms of energy release rate accompanying the flaw growth to define the most feasible fracture configurations. The dependences of the crack energy release rate on sizes of crack and inhomogeneity, and elastic moduli of materials are shown and discussed. It is demonstrated that the energy release rate reaches its maximum value at certain ratios of inhomogeneity-to-matrix shear moduli and crack-to-inhomogeneity sizes. 10.18149/MPM.5122023_2 ceramic composites fracture toughness crack energy release rate finite element simulation https://mpm.spbstu.ru/article/2023.94.2/ 2-Ignateva.pdf
RAR RUS 27-35 Peter the Great St. Petersburg Polytechnic University Klinkov
St.Petersburg, Russia
 Peter the Great St. Petersburg Polytechnic University Archelkov
St. Petersburg, Russia
 Peter the Great St. Petersburg Polytechnic University Semencha
St.Petersburg, Russia
 Peter the Great St. Petersburg Polytechnic University Tsimerman
St. Petersburg, Russia
 Peter the Great St. Petersburg Polytechnic University Sedegova
St. Petersburg, Russia
 Peter the Great St. Petersburg Polytechnic University Rudskoy Andrey
St.Petersburg, Russia
 Halide-containing zinc borosilicate glass as a matrix for CsPbBr3 crystal The paper presents the results of studying the region of glass formation in the B2O3-SiO2-ZnO-NaBr system. The used mode of glass synthesis made it possible to avoid the complete volatilization of bromine from the glass melt. For a series of samples containing 8 mol.% sodium bromide, 12 mol.% SiO2 and variable ratio of B2O3 and ZnO the dependences of density and refractive index were determined. For the glass composition 60B2O3 – 12SiO2 – 20ZnO – 8NaBr additionally containing PbBr and CsNO3, in-situ crystallization of halide perovskite crystals was performed. Based on X-ray phase analysis, the formation of the CsPbBr3 phase was established. Upon excitation at a wavelength of 405 nm, the glass-ceramic sample had a luminescence band with a maximum near a wavelength of 518 nm. 10.18149/MPM.5122023_3 zinc borosilicate glass glassy matrix halide perovskite crystals CsPbBr3 microhardness https://mpm.spbstu.ru/article/2023.94.3/ 3-Klinkov-VA%2C-et-al.pdf
RAR RUS 36-49 Tashkent Institute of Irrigation and Agricultural Mechanization Engineers Ahmedov
Tashkent, Uzbekistan
 Tashkent Institute of Irrigation and Agricultural Mechanization Engineers Mirsaidov
Tashkent, Uzbekistan
 Dynamic characteristics of wheelsets with a rail considering viscous-elastic properties of the material Assessment of the dynamic characteristics (eigenfrequencies, modes and decrement of vibration) of rolling stock wheelsets is an urgent task. This study is devoted to the evaluation of the dynamic characteristics of wheelsets together with the rail taking into account the inelastic properties of the shaft material, wheel sliding, and rolling stock speed. A mathematical model for assessing the dynamic characteristics of wheelsets, taking into account the viscoelastic properties of the material of the system was developed using the Boltzmann-Volterra hereditary theory. A method and algorithm were developed to reduce the problem of natural oscillations of the system to an algebraic eigenvalue problem. Dynamic characteristics of the wheelsets were determined under various parameters of the viscoelasticity of the material. A mathematical model was developed to evaluate the dynamic characteristics of wheelsets with a rail, while considering dissipative processes and using a linear combination of mass and stiffness matrices of the system. Eigenfrequencies, modes and decrement of vibrations of rolling stock wheelsets with a rail were determined taking into account wheel sliding and rolling stock speed. Some mechanical effects were revealed. 10.18149/MPM.5122023_4 rolling stock wheelsets dynamic characteristics viscoelasticity adhesion sliding damping https://mpm.spbstu.ru/article/2023.94.4/ 4-Ahmedov-O%2C-Mirsaidov-M.pdf
RAR RUS 50-57 Peter the Great St. Petersburg Polytechnic University Zisman
St.Petersburg, Russia
 National research centre “Kurchatov Institute” - Central Research Institute of Structural Materials “PROMETEY” Petrov
St.Petersburg, Russia
 0000-0002-0185-5452 Peter the Great St. Petersburg Polytechnic University Zolotorevsky
St.Petersburg, Russia
 Peter the Great St. Petersburg Polytechnic University Ermakova
St.Petersburg, Russia
 Spectra of crystal curvature in terms of EBSD data to assess martensite fraction in bainitic steel A martensitic or bainitic structure of low-carbon steel provides its high strength and fracture toughness combined with good weldability. At the same time, the phase composition of such materials depends on the cooling rate in quenching and hence becomes rather non-uniform in case of thick semi-products. Accordingly, to answer a challenging question of how this issue affects the metal properties, relevant methods of local structural analysis are required. To assess martensite fractions in low carbon bainitic steel quenched at different cooling rates, statistics of the crystal curvature in terms of EBSD data is analyzed. Results are verified by independent data on the transformation kinetics recorded by dilatometry and characteristic coupling of the transformation variants admitted by the interphase orientation relationship.  10.18149/MPM.5122023_5 martensite bainite crystal curvature EBSD transformation kinetics https://mpm.spbstu.ru/article/2023.94.5/ 5-Zisman-et-al.pdf
RAR RUS 58-64 7003559440 0000-0003-2192-0386 Institute for Problems of Mechanical Engineering RAS Skiba Nikolai nikolay.skiba@gmail.com
St. Petersburg, Russia
 Mechanism of fracture toughness enhancement in bimodal metal-graphene composites with nanotwinned structure A theoretical model is suggested which describes a mechanism of the fracture toughness in a bimodal nanotwinned metal-graphene composite consisting of large grains with nanotwinned structure embedded into ultrafine-grained/nanocrystalline metal-matrix reinforced by graphene inclusions. In the framework of the model, the migration of nanotwin boundaries in the large grains releases in part local stresses near crack tips and provides the enhancement of the plastic deformation of the bimodal nanotwinned metal-graphene composites. At the same time, the presence of the graphene inclusions induces the crack bridging effect which also increases the fracture toughness of the metal-graphene composites. In exemplary case of aluminum-graphene composite, it was shown that the formation of the bimodal nanotwinned structure in ultrafine-grained/nanocrystalline matrix and account for the crack bridging by the graphene inclusions leads to a significant increase in the fracture toughness of the bimodal nanotwinned metal-graphene composites. 10.18149/MPM.5122023_6 fracture toughness microcracks plastic deformation metal-graphene composites bimodal nanotwinned structure nanotwin boundaries https://mpm.spbstu.ru/article/2023.94.6/ 6-N_V_-Skiba.pdf
RAR RUS 65-80 MIT World Peace University Manoli
Kothrud, Pune, India
 57222344585 0000-0002-4883-8174 MIT World Peace University Ghadge
Kothrud, Pune, India
 MIT World Peace University Kumar
Kothrud, Pune, India
 Effect of surface roughness on the fatigue strength of E-glass composite single lap joint bonded with modified graphene oxide-epoxy adhesive The inability of manufacturing systems to fabricate near net shape complex structures requires efficient joining techniques for simple components to form a complex structure. Composites adhesive are gaining attention due to their good mechanical properties. The present study aims to improve the mechanical strength of single lap joint of composite material comprises of glass fibers reinforced polymer (GFRP) plates which were joined by nano particles modified adhesive. Epoxy adhesive was modified by dispersing 0.5 wt.% graphene oxide (GO). The surfaces of GFRP plates were prepared for five different surface roughness. The effectiveness of joint was assessed by the enhancement in the fatigue strength and fracture resistance of the single lap joint. The tensile test depicted the peak load of 6.095 kN when the surface roughness was prepared to be 3.316 µm. The observed peak load was 68 % higher as compared to as-prepared composites where the surface roughness was 0.211 µm. Similarly, for the same surface roughness, axial fatigue tests showed 30 % enhancement in number of cycles to failure as compared to as-prepared composites. The results concluded a substantial effect of surface roughness of adherend on the joint strength. 10.18149/MPM.5122023_7 Cure/Hardening; resin-based composites; Epoxy Resin; Graphene Oxide; Optical Microscopy; Tensile Testing; Fatigue Scanning Electron Microscopy; Surface Finish; surface treatment https://mpm.spbstu.ru/article/2023.94.7/ 7-Ashutosh-Manoli-%2C-Rohit-Ghadge-%2C-Parshant-Kumar.pdf
RAR RUS 81-95 National Research University "Moscow Aviation Institute" Strizhius
Moscow, Russia
 A methodology for estimating the damage growth rates in layered composites using special fatigue accumulation rules The main provisions of existing methods for estimating the delamination growth rates in layered composites under cyclic tension are presented. It is noted that the considered methods do not allow one to estimate the growth rates of various damage modes during the accumulation of fatigue. As a definite alternative to the presented methods, a methodology for such estimates is proposed using special rules of separate fatigue accumulation. Verification of the ratios of the proposed methodology is carried out on the example of calculated estimates of the growth rates of three damage modes (delamination, matrix cracking, and splitting and ply cracking around open hole edges) of three types of specimens made of laminates of various carbon plastics. It is noted that the accuracy of the obtained estimates depends on the accuracy of the approximation of the experimental data, on the basis of which the search for relations for the special rules of separate fatigue accumulation is conducted. 10.18149/MPM.5122023_8 layered composites delamination matrix cracking splitting and ply cracking damage growth rates fatigue accumulation rules https://mpm.spbstu.ru/article/2023.94.8/ 8-V_-E_-STRIZHIUS.pdf
RAR RUS 96-111 Khabarovsk Federal Research Center, Far-East Branch of RAS Prokudin
Komsomolsk-on-Amur, Russia
 Exact elastoplastic analysis of a rotating hollow cylinder made of power-law hardening material The article is devoted to the elastic-plastic analysis of a rotating hollow cylinder with fixed ends. It is assumed that the strains in a cylinder are infinitesimal and additively decomposed into elastic and plastic components. The elastic component of strain is determined in accordance with Hooke's law. The Tresca’s yield condition, the flow rule associated with it and the power law of hardening are adopted in order to calculate plastic strains. The presented analysis covers both loading and unloading stages. Unloading of a cylinder is assumed to be purely elastic. For a number of special cases of the hardening law, an analytical solution of the formulated system of equations is found. Special attention is paid to the calculation of the angular velocity corresponding to the complete transition of a cylinder to the plastic state. Dependencies of the fully-plastic limit angular velocity on the hardening parameters are established. 10.18149/MPM.5122023_9 elastoplasticity stress analysis Tresca’s criterion power-law hardening rotating cylinder exact solution https://mpm.spbstu.ru/article/2023.94.9/ 9-A_N_-Prokudin.pdf
RAR RUS 111-120 57209342766 0000-0001-8732-9615 Federal State-Financed Educational Institution of Higher Learning "Komsomolsk-na-Amure State University" Andrianov
Komsomolsk-on-Amur, Russia
 57208741522 0000-0001-8684-7541 Federal State-Financed Educational Institution of Higher Learning "Komsomolsk-na-Amure State University" Feoktistov
Komsomolsk-on-Amur, Russia
 Integral equations of deformation of cylindrical workpieces in axisymmetric matrices of complex shape The article considers the process of deformation of thin-walled pipes using complex-shaped tooling. The article solves the actual problem of elastic and plastic deformation of pipe blanks in the stamping process, taking into account physical nonlinearity since the power law of hardening is taken into account, as well as the compressibility of the material at the stage of elasticity. When determining the stress and strain state during the deformation of thin-walled pipe blanks using axisymmetric tooling, the method of variable elasticity parameters was used, which allows taking into account not only the change in thickness during deformation but also the compressibility and nonlinearity of the hardening of the material. Integral equations are obtained for various processes: crimping and drawing, distribution, and broaching of a pipe billet. The described processes differ in the way the external load is applied. For all processes, two sections with different directions of curvature in the meridional section can be distinguished. The solution for determining the stress and strain state of the pipe, in accordance with the method of variable elasticity parameters, is proposed to be carried out by the method of successive approximations according to the constructed recurrent scheme. 10.18149/MPM.5122023_10 integral equations of deformation stamping workpieces of complex curvature stresses compressibility of the material physical nonlinearity https://mpm.spbstu.ru/article/2023.94.10/ 10-I_K_-Andrianov%2C-S_I_-Feoktistov(1).pdf
RAR RUS 122-127 Moulay Ismail University of Meknes Zhouri
Meknes, Morocco
 Moulay Ismail University of Meknes Haddouch
Meknes, Morocco
 Université Hassan 1er Mouallif
Settat, Morocco
 Moulay Ismail University of Meknes Mouallif
Meknes, Morocco
 Comparative studies (using FTIR) of structural changes in HDPE under UV aging for different commercial companies One of the key pillars of the nation's infrastructure is the sewerage system. The selection of sewerage pipelines must therefore be done after extensive research before they are installed in the relevant network. These studies should guarantee the durability of these pipelines. High density polyethylene is produced due to its dominance in these applications. But despite the performance of the latter, it can be attacked by chemical or physical factors. Our research aims to analyze HDPE samples that have been exposed to ultraviolet (UV) rays from natural light for predetermined amounts of time using infrared spectroscopy. The structural alterations of the chemical bonds in these samples' composition can be determined by FTIR spectroscopy analysis. The results show that there is a remarkable change in the spectra of the aged (after exposure) and unaged (before exposure) samples. 10.18149/MPM.5122023_11 HDPE FTIR UV chemical structure degradation polymer https://mpm.spbstu.ru/article/2023.94.11/ 11-O_-Zhouri%2C-et-al.pdf
RAR RUS 128-139 Jawaharlal Nehru Technological University Anantapur Ganesh
Ananthapur, India
 Jawaharlal Nehru Technological University Anantapur Hemachandra Reddy
Ananthapur, India
 Kuppam Engineering College Sudhakar Babu
Kuppam, India
 BMS College of Engineering Ravikumar
Bengaluru, India
 Study on microstructure, tensile, wear, and fracture behavior of A357 by modifying strontium (Sr) and calcium (Ca) content Development of aluminium cast parts by stircasting technique is an effective method. Stircasting technique is one of the most commonly accepted techniques. In the present investigation, how the microstructure, mechanical and wear mechanics of A357 alloy were impacted by the presence of Sr/Ca was investigated. The outcomes revealed that addition of elements (Sr/Ca) enhance the microstructural features. Uniform dispersal of particulates (Sr/Ca) in A357 alloy and also the modified structure of silicon (Si) were observed. The outcomes also exhibited that, the simultaneous additions of Sr/Ca cause a considerable improvement of tensile strength and wear resistance. The study on fractured surfaces reveals the acceptable bonding among A357+Sr/Ca element. 10.18149/MPM.5122023_12 A357 alloy mechanical behavior wear behavior SEM analysis https://mpm.spbstu.ru/article/2023.94.12/ 12-K_-Ganesh_et-al_F.pdf
RAR RUS 140-150 Institute of Machinery and Metallurgy, Khabarovsk Federal Research Center FEB RAS Sevastyanov
Komsomolsk-on-Amur, Russia
 Finite-strain elastic-plastic torsion: comparison of von Mises and Tresca materials Analytical and numerical results for fixed-end torsion of cylindrical specimen are presented. Finite-strain elastoplastic kinematics based on multiplicative split of deformation gradient tensor is adopted. The constitutive relations are a combination of an arbitrary hyperelastic model based on the first invariant of the left Cauchy–Green deformation tensor and the J2–plasticity model with an arbitrary isotropic strain hardening. The integral characteristics of the process, namely, torque and axial force (Swift effect), are compared with the known exact solution for a neo-Hookean hyperelastic material with Tresca yield condition. The axial force predicted by these models can differ markedly, but the torque is almost the same. For the materials with yield stress saturation, we find the limit in torque and axial force. 10.18149/MPM.5122023_13 torsion finite-strain elastoplasticity hardening von Mises yield condition Tresca yield condition Swift effect hyperelasticity https://mpm.spbstu.ru/article/2023.94.13/ 13-Sevastyanov.pdf
RAR RUS 151-163 University of Djillali Mimmi
Sidi Bel Abbes, Algeria
 0000-0002-7276-7716 University of Djillali Merzoug Mohammed
Sidi Bel Abbes, Algeria
 University of Mustapha Ghazi
Mascara, Algeria
 University of Djillali Dellal
Sidi Bel Abbes, Algeria
 Mechanical behavior of structures welded with friction stir lap welding process The friction stir welding (FSW) process has been developed to obtain good joint mechanical and process properties. The development of FSW for lap joint manufacturing will expand the number of applications that can benefit from this technology. In this paper, experimental methods were performed on FSW lap joints, including interface morphology and mechanical properties. Microhardness measurements, lap shear testing, resulting material flow, and the effect of flow variation on the next mechanical properties of FSW butt lap joints in aluminum alloy 3003. The study also presents the effect of different parameters welding on the quality of lap joints. The hardness in the welded region gives importance to the influence of the studied parameters on the different zones of the weld. The fracture shows the characteristics of ductile-brittle mixed fracture. 10.18149/MPM.5122023_14 Friction stir welding lap joint aluminum 3003 parameters tensile shear test properties https://mpm.spbstu.ru/article/2023.94.14/ 14-A_-Mimmi%2C-et-al.pdf
RAR RUS 164-176 National Institute of Technology Kurukshetra Baldev Singh Rana
Haryana, India
 National Institute of Technology Kurukshetra Gian Bhushan
Haryana, India
 National Institute of Technology Kurukshetra Pankaj Chandna
Haryana, India
 Mechanical and tribological analysis of jute, cotton reinforced epoxy based hybrid composites Increase in environmental pollution and global warming due to continuous use of petroleum based materials, exploitation of forest reserves, improper industrial wastes management and natural resources. To reduces such alarming issues and find viable solutions, innovative research work on recycling of used materials such as used (clothes) textile wastes and used jute fibers has been reported to develop advanced sustainable hybrid composites in this work. The current study deals with mechanical and wear peculiarities of (cotton and jute fiber) textile wastes reinforced epoxy composites. Hand lay-up method was used to develop composites in five different stacking sequences. The developed composites were characterized for its mechanical peculiarities namely hardness, flexural, tensile, toughness, as per ASTM standards. Hybrid composite which was found with best sacking sequence, pure cotton and pure jute fiber composites were further analyzed for their wear peculiarity behaviour using Taughi (L27) design of experiment approach. Morphologies after mechanical and wear testing studies using SEM. It was inferred that hybrid composites with JCCJ stacking sequence produced good mechanical peculiarities. The currently developed composites have been found better than pure wood, epoxy, plastics and persuade for multifunctional applications. 10.18149/MPM.5122023_15 Epoxy Hybrid Composites Waste jute fiber Waste cotton fiber Taughi design of experiment https://mpm.spbstu.ru/article/2023.94.15/ 15-Rana-Baldev.pdf
RAR RUS 177-186 St. Petersburg State University Volkov A.E.
St. Petersburg, Russia
 St. Petersburg State University Evard M.E.
St. Petersburg, Russia
 Saint Petersburg State University Volkova
St. Petersburg, Russia
 Saint Petersburg State University Vukolov
St. Petersburg, Russia
 Microstructural modeling of a TiNi beam bending This work presents a numerical simulation of a TiNi shape memory alloy (SMA) beam deformation in the mode of pure bending. The beam is loaded by a bending moment and experiences temperature variations. The boundary-value problem includes the equations of the mechanical equilibrium and the constitutive relations of the SMA realized by a microstructural model, which accounts for the strains due to elasticity, thermal expansion, and phase transformation. Bending at different temperatures and the shape recovery on heating are simulated. Thickness distributions of the stress and dependences of the deflection on the bending moment and temperature are obtained. Since the microstructural model automatically accounts for the tension-compression asymmetry of TiNi its use for the description of the SMA behavior predicts that the neutral line of the bent beam does not pass through its center. 10.18149/MPM.5122023_16 shape memory alloys bending boundary-value problem modeling https://mpm.spbstu.ru/article/2023.94.16/ 16-A_E_-Volkov%2C-M_E_-Evard%2C-N_A_-Volkova%2C-E_A_-Vukolov.pdf