Draft:Press center

Oleg Anatolyevich Plekhov (born July 9, 1974 , Perm ) - Russian mechanical scientist , Doctor of Physical and Mathematical Sciences (2010), Professor of the Russian Academy of Sciences (2016), Corresponding Member of the Russian Academy of Sciences (2022), Director of the Perm Federal Research Center Ural Branch of the Russian Academy of Sciences (2022), member of the Presidium of the Ural Branch of the Russian Academy of Sciences (2022).

Biography
From 1981 to 1989 he studied at School No. 1 of the Kirov district of Perm. In 1991 he graduated from Lyceum No. 1 at the Perm Polytechnic Institute, Perm Polytechnic University (1997) and graduate school at the Institute of Continuum Mechanics of the Ural Branch of the Russian Academy of Sciences (2000).

In 2000 he defended his PhD thesis “Modeling the nonlinear dynamics of cracks and localized fracture in load waves”, in 2009 he defended his doctoral thesis “Structural and kinetic mechanisms of deformation and fracture of materials in coarse-grained and submicrocrystalline states.” He held the positions of leading researcher, deputy director for science of the Institute of Social Sciences of the Ural Branch of the Russian Academy of Sciences.

In 2022, he received an MBA degree from the Institute of Business and Business Administration at the Russian Academy of National Economy and Public Administration under the President of the Russian Federation ( IBDA RANEPA ).

Professor of the Department of Dynamics and Strength of Machines of PNRPU and the Department of Continuum Mechanics and Computational Technologies of the Faculty of Mechanics and Mathematics of Perm State National Research University, teaches special courses on fracture mechanics.

Member of the editorial board of the journals “Fracture and Structural Integrity”, Diagnostics, Resource and Mechanics of materials and structures, Geosystems of transition zones, Bulletin of the Perm Federal Research Center.

Member of the Russian National Committee on Theoretical and Applied Mechanics [1]. Member of the Russian National Committee of ESIS (European Society for Structural Strength) [2].

Expert of the Russian Academy of Sciences, the Russian Foundation for Basic Research and the Federal State Budgetary Institution Research Institute RINCCE, member of the Expert Council of the Russian Science Foundation.

Winner of the Perm Region Prize of the first degree for the best work in the field of physical and mathematical sciences in 2017.

Author of more than 300 articles in Russian and international journals.

Scientific activity
The main directions of research are related to the thermodynamics of the processes of plastic deformation and destruction of structural materials. A series of fundamental studies of the processes of accumulation and dissipation of energy in metals has been carried out, new results have been obtained in the field of describing the dissipative and strength properties of promising nanostructured materials, methods have been proposed for quickly assessing the fatigue limit, the features of the destruction of metals in the field of gigacycle fatigue have been studied, practical aspects of implementing methods for increasing fatigue strength have been developed. resource of construction materials.

In the scientific works of Plekhov O.A. For the first time in the Russian Federation, the effectiveness of using the infrared thermography method in studying problems of energy accumulation and dissipation was demonstrated. A method has been created, which includes methodological, software and hardware solutions, which makes it possible to analyze the evolution of heat sources in a material during the process of deformation and destruction. New results were obtained in the field of thermodynamics of the process of propagation of fatigue cracks in metals, which initiated active research on this issue in various research centers in Russia and abroad. The possibility of effective use of the infrared thermography method in interdisciplinary research, in particular, in the process of diagnosing a number of socially significant diseases, is shown.

Plekhov O.A. A wide range of experimental and theoretical studies were carried out to analyze the stress-strain state in the vicinity of stress concentrators. Based on the analysis of self-similar solutions to equations describing the behavior of an ensemble of mesoscopic defects, a generalization of the theory of critical distances to the case of dynamic loading is proposed. A number of theoretical and applied results were obtained for the first time.

Plekhov O.A. new theoretical and experimental results were obtained in the field of the behavior of metals under loading in the gigacycle fatigue regime. Experimental techniques are proposed for analyzing the features of the processes of accumulation of defects and the transition from dispersed to macroscopic destruction in the gigacycle fatigue regime. The results obtained have found practical application in work with enterprises of the aircraft manufacturing and military-industrial complex.

Plekhov O.A. new constitutive relations were obtained that describe the energy balance in the material during the process of deformation and destruction; based on the development of traditional structural-energy theory, new energy criteria for destruction were proposed. As a result of theoretical research, a basis has been created for 3D numerical modeling of the processes of deformation and destruction, energy accumulation in the material during deformation, and the initiation and propagation of fatigue cracks. Modeling of the processes of transition from straight to branching modes of crack propagation and propagation of fracture waves in brittle materials was carried out.

Over the past years, Plekhov O.A. actively works in the field of modeling the mechanical behavior of the processes of deformation and destruction of frozen soils. Theoretical research in this area received support from the Russian Foundation for Basic Research, practical results have found real application in the creation of innovative monitoring systems for ice barriers in Russia and abroad.

Under the leadership of Plekhov O.A. The Institute has created a laboratory for Thermomechanics of Solids ; together with the laboratory staff, they have created the only robotic complex in Russia for implementing the method of laser impact forging of metals and alloys, allowing for a wide range of studies on the interaction of intense laser radiation with matter. Using the complex, new results were obtained in the field of design of residual stresses in products of complex geometry and a number of practical works were performed to increase the fatigue life of aviation alloys.

Plekhov O.A. author of more than 260 scientific publications (according to RISC, H-index 18), including 160 foreign publications (according to Scopus and WoS, H-index 15). The results of his research were repeatedly presented at All-Russian and International conferences on mechanics of deformable solids. Trained four candidates of physical and mathematical sciences.

Plekhov O.A. actively develops international cooperation. During his scientific work at the institute Plekhov O.A. completed long-term scientific internships at the Karlsruhe Research Center (Germany), at the LAMEF-ENSAM laboratory (France), the Polytechnic Institute of Turin (Italy), and the University of Sheffield (UK). Plekhov O.A. participated in joint projects with leading Russian and foreign scientific centers in Germany, France, Italy, Great Britain, and India. On the initiative of Plekhov O.A. In 2012, 2019, 2022, special issues of the journal of the Italian Fracture Group were prepared, dedicated to the current state of research in the field of fracture mechanics in Russia. Since 2020 Plekhov O.A. participates in the work of the world-class scientific center “Supersound”.

Links

 * Профиль Олега Анатольевича Плехова на официальном сайте РАН
 * Страница на сайте ПНИПУ
 * Страница на сайте кафедры «Динамика и прочность машин»
 * Страница на портале профессоров РАН
 * Биографическая справка
 * Информация на сайте кафедры вычислительной и экспериментальной механики ПГНИУ