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Research Laboratory for Problems of Strength, Dynamics and Operation Life

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As of 15.02.2021

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scientific publications
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General information

Name of the project: Experimental research of materials in wide range of velocities and temperatures in the setting of fields of mechanical nature

Strategy for Scientific and Technological Development Priority Level: д

Goals and objectives

Research directions: Experimental research of materials in wide range of velocities and temperatures in the setting of fields of mechanical nature

Project objective: Determining, research, description of characteristics of materials; determining, researching and describing effects and processes in materials; assessing dynamics of strength, operation life, destruction of materials for ensuring reliability and extending operation lifespan of critical nodes and structures in hi-tech fields of economics, in nuclear power

The practical value of the study

Model identification is carried out describing the behavior of materials and structures under quasi-static and dynamic loading conditions. Mathematical models and numerical techniques have been developed for studying nonlinear behavior of structures and materials under thermopower quasi-static effects. The models of algorithms and programs for studying quasi-static and dynamic processes of deformation of alloys, materials and structural elements made of multi-modular materials have been developed. Mathematical models, algorithms and software based on the finite element method have been elaborated for numerical modeling of stress corrosion cracking of structural materials subjected to thermomechanical loading under the impact of corrosive aqueous media.

Experimental schemes for studying the deformation and fracture of layered composite materials under dynamic loading have been developed by the laboratory staff. Using the previously purchased ANSYS software, a numerical study of deformation and failure processes of the specimens in the indicated schemes was carried out. A numerical substantiation of the applicability of the developed methods for assessing the rate dependences of deformation and strength is performed. On the basis of the purchased equipment for high-rate video recording of dynamic processes, a method for assessing the parameters of specimen deformation under conditions of low spatial resolution has been developed. This technique was used for experimental analysis and validation of the direct impact method to determine the dynamic deformation curves of viscoplastic materials.

Implementation of research results:

Experimental schemes developed and verified by the laboratory staff for studying the velocity sensitivity of the strength characteristics of layered composite materials based on carbon fiber and a polymer binder were used in the course of contractual work with enterprises of the UEC (Central Institute of Aviation Motors named after PI Baranov (CIAM) Moscow, JSC " UEC-Aviadvigatel " Perm, PJSC" UEC-SATURN " Rybinsk) in order to determine the rate dependences of the strength characteristics of a number of composite materials in the framework of the development of a new generation domestic aircraft engine PD-14. On December 15, 2020, the first flight of the MC-21310 aircraft with the domestic PD-14 engine took place. In connection with this significant event, a letter was sent to Anatoly Mikhailovich Bragov, head of the dynamic testing laboratory of the Research Institute for Mechanics of NNSU, from the General Designer of JSC UEC-Aviadvigatel, Corresponding Member of the Russian Academy of Sciences, A.A. Inozemtsev, in which he thanked the staff of the Research Institute for Mechanics of NNSU for participation in the PD-14 Program, “for selfless work, professionalism and dedication to the interests of the Russian aviation industry”.

Education and retraining of personnel:

In 2019-2020 13 laboratory employees took part in jointly with MEPhI teachers in the development of the Master's program "Supercomputer technologies in engineering and physical modeling", the student enrollment for the educational program was announced for 2021 (the program was developed with the support of the Ministry of Science and Higher Education to carry out work on the development and implementation of educational program of higher education with the involvement of scientific and pedagogical workers from universities included in the top 200 subject global rankings).

In 2018 and 2019, 2 work programs were modernized.

Under the leadership of L.A. Igumnov in 2020, 22 members of the laboratory underwent advanced training under the program "Engineering Analysis and Supercomputer Modeling", in 2019 under the program "Problems of Strength, Dynamics and Resource" - 29 members of the laboratory, in 2018 under the program "Problems of Strength, Dynamics and Resource" - 23 member of the laboratory.

In 2020, members of the laboratory underwent advanced training in 8 more advanced training programs at MEPhI, in 2019, in 2 advanced training programs at UNN.

During the existence of the laboratory:

  • in 2018 - the members of the laboratory defended 2 doctoral dissertations, 1 Ph.D.degree; 1 master's thesis and 1 specialist work were defended under the guidance of the laboratory members; 1 PhD degree was received, 1 student was admitted to Ph.D. program.

  • in 2019 - 2 Ph.D. theses were defended by the members of the laboratory, 4 master's theses, 5 bachelor's theses were defended under the guidance of the laboratory members, 3 postgraduate diplomas were received.

  • in 2020 - the members of the laboratory defended 2 candidate dissertations, 1 master's thesis, 1 person was admitted to postgraduate school.

The members of the laboratory take an active part in the work of the Research School "Computer and Experimental Mechanics" of the UNN, in the work of the dissertation councils D 212.166.09, D 212.166.07 at the UNN, give lectures and conduct practical classes at the Institute of Information Technology, Mathematics and Mechanics of the UNN, carry out management of scientific work of students and graduate students. Candidate dissertations are successfully defended under the guidance of laboratory members.

 Infrastructure transformations:

The laboratory was provided with a computing cluster based on SuperMicro (the computing system provides 20 computing nodes, each of which consists of two eight-core processors with x86-64 architecture Intel (R) Xeon (R) CPU E5-2670 with 2.6 GHz performance and operational memory of architecture DDR3 with a total volume of 128 GB. Operating system CentOS 6.5 (Final) with kernel 2.6.32-431. The performance obtained on the Linpack test is 5833 GFlops.

The laboratory staff use the equipment of the Center for Collective Use "Computer and Experimental Mechanics" located on the territory of the Research Institute for Mechanics of the NNSU. Laboratory staff are directly involved in the work of REC "Mechanics" and the Research School "Computer and Experimental Mechanics".


The laboratory staff carry out joint research with the staff of the Delft Technical University (Netherlands), the International University of Telematics Uninettuno (Italy), the Research Laboratory "New Materials and Projects for Science and Technology" (France), the University of Strasbourg (France), the Fraunhofer Institute for the Dynamics of Rapid Processes of Society (Germany), University of Stuttgart (Germany), Technical University of Berlin (Germany), Cardiff University (UK), Imperial College London (UK), Gdansk Polytechnic University (Poland), University of Applied Sciences of Southern Switzerland (Switzerland), Tufts University (USA) ), Warsaw Military Technical Academy (Poland). Joint scientific seminars are being held, joint publications are being prepared.

At various stages, the following scientists were involved in the work:

  • Leading foreign scientists (foreigners): Kruschka Leopold (index H = 4);

  • Scientists - young specialists from other regions of Russia: Aleksey Dmitrievich Evstifeev (St. Petersburg), Galina Yurievna Levi (Rostov-on-Don).

As part of the work under the grant, 2 joint monographs were published in the Springer publishing house in the Advanced Structured Materials: Dynamics, Strength of Materials and Durability in Multiscale Mechanics series edited by the Leading Scientist Dell Isola Francesco (Rome, Italy) and L.A. Igumnov. (ISBN 978-3-030-53754-8); Multiscale Solid Mechanics: Strength, Durability, and Dynamics edited by Holm Altenbach (Berlin, Germany), Eremeev V.A. (Gdansk, Poland) and Igumnov L.A. (ISBN 978-3-030-54927-5).

For the successful organization of the scientific work of young employees, experienced world-famous scientists from Wojskowa Akademia Techniczna (Warsaw), Otto-von-Guericke-Universität Magdeburg Institute of Mechanics, Institute of Mechanical Engineering Problems of the Russian Academy of Sciences - a branch of the Federal Research Center of the IAP RAS, Federal Scientific Center Research Institute for System Studies of the Russian Academy of Sciences, which set tasks for young scientists, graduate students and undergraduates, monitor the progress of their implementation, help and indicate ways to solve them.

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Malikan M., Eremeyev V.A.
A new hyperbolic-polynomial higher-order elasticity theory for mechanics of thick FGM beams with imperfection in the material composition // COMPOSITE STRUCTURES. 2020. Vol 249. DOI 10.1016/j.compstruct.2020.112486
Bragov A.M., Igumnov L.A., Konstantinov A.Y., Lomunov A.K., Rusin E.E., Eremeyev V.A.
Experimental analysis of wear resistance of compacts of fine-dispersed iron powder and tungsten monocarbide nanopowder produced by impulse pressing // WEAR. 2020. Vol 456. DOI 10.1016/j.wear.2020.203358
Chroscielewski J., dell'Isola F., Eremeyev V.A., Sabik A.
On rotational instability within the nonlinear six-parameter shell theory // INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES. 2020. Vol 196. DOI 10.1016/j.ijsolstr.2020.04.030
Ferretti M., Gavrilov S.N., Eremeyev V.A., Luongo A.
Nonlinear planar modeling of massive taut strings travelled by a force-driven point-mass // NONLINEAR DYNAMICS. 2019. Том: 97 Выпуск: 4 Стр.: 2201-2218. DOI: 10.1007/s11071-019-05117-z
Smirnov I.V., Lamzin D.A., Konstantinov A.Y., Bragov A.M., Lomunov A.K.
A unified experimental-theoretical approach to predict the critical stress characteristics of failure and yielding under quasi-static and dynamic loading // ENGINEERING FRACTURE MECHANICS. 2018. Vol 225. DOI 10.1016/j.engfracmech.2018.10.023
Bragov A.M., Balandin V.V., Igumnov L.A., Kotov V.L., Kruszka L., Lomunov A.K.
Impact and penetration of cylindrical bodies into dry and water-saturated sand // INTERNATIONAL JOURNAL OF IMPACT ENGINEERING. 2018. Vol 122. DOI 10.1016/j.ijimpeng.2018.08.012
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