Персона: Морозов, Евгений Михайлович
Загружается...
Email Address
Birth Date
Научные группы
Организационные подразделения
Организационная единица
Институт общей профессиональной подготовки (ИОПП)
Миссией Института является:
фундаментальная базовая подготовка студентов, необходимая для получения качественного образования на уровне требований международных стандартов;
удовлетворение потребностей обучающихся в интеллектуальном, культурном, нравственном развитии и приобретении ими профессиональных знаний; формирование у студентов мотивации и умения учиться; профессиональная ориентация школьников и студентов в избранной области знаний, формирование способностей и навыков профессионального самоопределения и профессионального саморазвития.
Основными целями и задачами Института являются:
обеспечение высококачественной (фундаментальной) базовой подготовки студентов бакалавриата и специалитета; поддержка и развитие у студентов стремления к осознанному продолжению обучения в институтах (САЕ и др.) и на факультетах Университета; обеспечение преемственности образовательных программ общего среднего и высшего образования; обеспечение высокого качества довузовской подготовки учащихся Предуниверситария и школ-партнеров НИЯУ МИФИ за счет интеграции основного и дополнительного образования;
учебно-методическое руководство общеобразовательными кафедрами Института, осуществляющими подготовку бакалавров и специалистов по социо-гуманитарным, общепрофессиональным и естественнонаучным дисциплинам, обеспечение единства требований к базовой подготовке студентов в рамках крупных научно-образовательных направлений (областей знаний).
Статус
Фамилия
Морозов
Имя
Евгений Михайлович
Имя
7 results
Результаты поиска
Теперь показываю 1 - 7 из 7
- ПубликацияТолько метаданныеMethodical Features of Tensile Testing of Ring Samples(2020) Kostyukhina, A. V.; Taktashev, R. N.; Leontieva-Smirnova, M. V.; Kalin, B. A.; Morozov, E. M.; Fedotov, P. V.; Леонтьева-Смирнова, Мария Владимировна; Морозов, Евгений Михайлович© 2020, Pleiades Publishing, Ltd.Abstract: Experimental and computational studies of the deformation behavior of ring samples under stretching with the use of cylindrical supports have been performed. Methodological errors of this type of testing have been analyzed. The deformation accumulated upon straightening a ring sample and also the gauge length thereof depending on the dimensions of the sample and supports have been determined. Relations that describe the error in determining the gauge length of a ring sample and the plastic deformation accumulated in the course of its straightening have been established.
- ПубликацияТолько метаданныеAnisotropy of strain hardening of the E110 alloy(2020) Fedotov, P. V.; Kalin, B. A.; Morozov, E. M.; Mokrushin, A. A.; Морозов, Евгений МихайловичThe purpose of this work is to examine the deformation behavior and mechanical properties of the E110 alloy at room temperature, as well as to test the hypothesis about the isotropy of its strain hardening. The following specimens have been used in the experiments: ring specimens (tensile in the tangential direction), and segmented specimens (tensile in the axial direction). The tests have been carried out at room temperature on a universal testing machine that meets the requirements of State Standard Specification 28840-90, with a speed of a traverse moving of 1 mm / min. The processing of machine deformation diagrams was carried out in a standard way. As a result, the mechanical characteristics of the specimens made of E110 alloy in the axial and tangential directions are obtained. In addition, hardening curves of the E110 alloy for the axial and tangential directions in the coordinates ln(s/1MPa)-ln(e/0.002) have been made. The investigations carried out made it possible to determine the presence of several sections on the deformation diagram (two for the axial direction, and three for the tangential) described by power functions and differing in the degree of hardening. It was also revealed that: the strain hardening of the E110 alloy is anisotropic; in the initial section of deformation, the strength of the alloy E110 in the tangential direction is higher than that is for the axial direction, in the final section it is lower; the error of approximation of experimental data in the case of using piecewise power functions is 7% for the axial direction, and 8 % for the tangential direction; in the case of using power functions with a constant degree of hardening, the approximation error increases to 14%, and 27% for the axial and tangential directions, respectively.
- ПубликацияТолько метаданныеPredicting the crack path in a wedge under a concentrated tensile force by means of variational principle(2019) Matvienko, Y. G.; Popova, N. S.; Morozov, E. M.; Морозов, Евгений Михайлович© 2019, Gruppo Italiano Frattura. All rights reserved.Variational principle of brittle fracture mechanics is employed to predict the crack path in an infinite wedge under a concentrated tensile force. The weight function in basic equation of variational problem is assumed to be proportional to the maximum strain in the uncracked wedge. Obtained equation for solving the variational problem allowed predicting the crack path in general. The predicted crack path is in agreement with experimental results obtained in the case of the truncated wedge.
- ПубликацияТолько метаданныеDETERMINATION OF THE PRESSURE INSIDE PORES Определение давления внутри пор(2021) Alymov, M. I.; Averin, S. I.; Saikov, I. V.; Galiev, F. F.; Morozov, E. M.; Морозов, Евгений Михайлович© 2021 TEST-ZL Publishing, LLC. All Rights Reserved.Determination of the porosity, structural characteristics of pores, and gas pressure in closed pores is the most important part of assessing physical and mechanical properties of materials. The internal pressure inside the pore can be used in estimating the level of strength reliability of the porous volume of the product to optimize the technological processes of product manufacturing, control their structure and properties, and avoid the formation of cracks at the boundaries of the particles consisting the material. We present a method for calculating the internal pressure in a spherical pore that has arisen in the material of a product obtained using powder metallurgy or additive technologies. The proposed procedure for measuring internal pressure in a pore consists in application of an external pressure to the product, measurements of the displacements of the points on the pore surface, and calculation of the internal pressure from the difference between the displacements. In this case, the known solutions of the problem of the theory of elasticity regarding the deformation of a spherical cavity located in the center of a spherical hollow ball are used. The results obtained can be used to assess the properties and structure of the products obtained by additive technology and methods of powder metallurgy, as well as to improve the technology of their manufacture.
- ПубликацияТолько метаданныеASSESSMENT OF FAILURE PROBABILITIES AND THE ALLOWABLE SIZE OF DEFECTS IN STRUCTURAL ELEMENTS USING THE CRITERIA OF FRACTURE MECHANICS [AICIIÆIINOE IOAIEE AAÐIßOIINOAE ÐACÐOØAIEß E AIIONOEIUO ÐACIAÐIA AAOAEOIA YEAIAIOIA EIINOÐOEOEE II EÐEOAÐEßI IAOAIEEE ÐACÐOØAIEß](2022) Lepikhin, A. M.; Morozov, E. M.; Makhutov, N. A.; Leschenko, V. V.; Морозов, Евгений МихайловичThe possibility of assessing the safe size of the defects of metal continuity using risk criteria are considered. Such defects occur at all stages of the life cycle of structures. Assessment of their hazard and determination of their allowable size becomes important when the defects can lead to brittle or quasi-brittle fracture. In this case, models of linear and nonlinear fracture mechanics are used. In these models, defects are considered as internal elliptical or surface semi-elliptical cracks. The stochastic variety of shapes, sizes, locations, and orientations of defects has a significant effect on the destruction mechanisms. In this regard, the relevant probabilistic problem of assessing the permissible size of defects according to the criteria of the risk of destruction comes to the fore. We consider a general approach to assessing hazard of defects by risk criteria. Two settings of the probabilistic problem of risk assessment based on of one- and two-parameter fracture criteria are presented. The risk function in the form of the probability of fracture according to a given criterion is used as the main calculated characteristic. The expression of the risk function based on one-parameter criteria of fracture mechanics is presented. The main attention is paid to the probabilistic model based on the two-parameter fracture criterion by E. M. Morozov. This criterion provides ample opportunities for analyzing fracture mechanisms with a change in the size of defects. An expression for the risk function based on the family of two-dimensional probability distributions of Lu – Bhattacharya of the Weibull type is obtained. It is shown that the correlations of the fracture mechanisms can significantly affect the values of the fracture probabilities, and, consequently, the allowable size of defects. © 2022 Industrial Laboratory. Materials Diagnostics. All rights reserved.
- ПубликацияТолько метаданныеPossibilities of Estimation of Fracture Probabilities and Allowable Sizes of Defects of Structural Elements According to the Criteria of Fracture Mechanics(2023) Lepikhin, A. M.; Morozov, E. M.; Makhutov, N. A.; Leschenko, V. V.; Морозов, Евгений Михайлович
- ПубликацияТолько метаданныеCoupled thermo-mechanical analysis of stress–strain response and limit states of structural materials taking into account the cyclic properties of steel and stress concentration(2023) Mahutov, N. A.; Morozov, E. M.; Gadenin, M. M.; Reznikov, D. O.; Yudina, O. N.; Морозов, Евгений МихайловичTwo groups of governing equations have been obtained due to the extensive theoretical and experimental studies in the field of mechanics of deformable solids conducted worldwide: (1) constitutive equations and criteria for damage and fracture in an isothermal formulation and (2) relationships between elastoplastic deformations and dissipative heat release. The paper considers the problems of the coupling between the processes of deformation and fracture and the kinetic effects of self-heating of the material due to the development of deformations. These problems are quite complex in the experimental and theoretical terms for relatively limited (up to 0.1), increased (up to 0.2) and large (up to 0.5) strains both under uniform and nonuniform states stresses and strains (with stress concentration factors ranging from 1 to 3). This leads to an essentially nonlinear formulation of coupled thermo-mechanical problems. The paper focuses on the scientific and methodological aspects of the formation of constitutive equations for the structural materials subjected to static and cyclic elastoplastic loading, and on determining the relationship between the processes of deformation and self-heating of the material due to internal heat release that occurs at limited operational strains that are close to isothermal ones as well as large static and cyclic strains that are close to the fracture ones and are accompanied by intensive (up to 500–600 ∘C) self-heating. The results of the experiments performed on specimens made of two different structural steels with different mechanical properties (heat-resistant and radiation-resistant low-alloy chromium–molybdenum–vanadium steel and austenitic stainless chromium–nickel–titanium steel) are presented. Precision measurements of temperatures of the material at various levels of strains were taken during static and cyclic tests that were carried on smooth and notched specimens under high-vacuum conditions using thermal imaging systems and high-sensitivity thermocouples. The results of the performed computational and experimental studies can be used for the estimation of strength and service life of highly loaded structural components of nuclear reactors, rocket engines, supersonic aircraft and other complex technical systems. © 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.