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Oleg Plekhov (9 July 1974) is a Russian physicist, 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).

Early life and education
Oleg Plekhov was born in Perm, Russian Federation. In 1991 he graduated from Lyceum No. 1, Perm Polytechnic Institute (1997), Perm Polytechnic University (1997) and postgraduate school at the Institute of Continuum Mechanics of the Ural Branch of the Russian Academy of Sciences (2000). In 2000 he earned a scientific degree of a Candidate of Sciences in Physics and Mathematics for his candidate thesis “Modeling the nonlinear dynamics of cracks and localized fracture in load waves”, and a degree of a Doctor of Sciences in Physics and Mathematics for his doctoral thesis “Structural and kinetic mechanisms of deformation and fracture of materials in coarse-grained and submicrocrystalline states” in 2009. Plekhov then served as the deputy director for science of the Institute of Continuum Mechanics of the Ural Branch of the Russian Academy of Sciences to 2022. He was elected a corresponding member of the Russian Academy of Sciences in 2022.

Research
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. For the first time in Russia, the effectiveness of using the infrared thermography method in studying problems of energy accumulation and dissipation was demonstrated in the works of Oleg Plekhov. A method has been created of 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 by him 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 was shown of the effective use of the infrared thermography method in interdisciplinary research, in particular, in diagnosing some socially significant diseases. A wide range of experimental and theoretical studies were carried out by him 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. New theoretical and experimental results were obtained by Oleg Plekhov 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. New constitutive relations were obtained by Plekhov Oleg 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, Oleg Plekhov 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 Oleg Plekhov a laboratory for Thermomechanics of Solids has been organised at the Institute of Continuum Mechanics where the only in Russia robotic complex has been created for implementing the method of laser impact forging of metals and alloys. 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. Oleg Plekhov is the author of more than 260 scientific papers (according to RISC, H-index 18), including 160 publications in foreign journals (according to Scopus and WoS, H-index 15). The results of his research were repeatedly submitted at Russian and International conferences on mechanics of deformable solids. Oleg Plekhov works to foster international cooperation. He 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 participated in joint projects with leading Russian and foreign scientific centers in Germany, France, Italy, Great Britain, and India. On his initiative, 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 in 2012, 2019, 2022. Since 2020, Oleg Plekhov has been involved in the world-class Supersound Science Center.

Links

 * https://www.sciencedirect.com/science/article/pii/S0013794423006938
 * https://www.sciencedirect.com/science/article/pii/S2772569323001652
 * https://www.mdpi.com/2075-4701/14/1/104
 * https://vestnik.pstu.ru/get/_res/fs/file2.pdf/11785/Astashina+N.B.%2C+Loginova+N.P.%2C+Rogotnev+A.A.%2C+Uvarov+S.V.%2C+Bannikov+M.V.%2C++Rapekta+S.I.%2C+Nikulin+S.M.%2C+Naimark+O.B.%2C+Ignatova+A.M.+%28Perm%2C+Russian+Federation%29.+Evaluation+of+fatigue+life+and+osseointegration+parameters+of+carbon-carbon+composite+materialfile2.pdf
 * https://link.springer.com/chapter/10.1007/978-3-030-79325-8_16
 * https://www.mdpi.com/2076-3417/11/16/7506
 * https://link.springer.com/article/10.1134/S0018151X22020286
 * https://www.fracturae.com/index.php/fis/article/view/2597
 * https://www.mdpi.com/2075-4701/11/8/1198
 * https://www.sciencedirect.com/science/article/pii/S2772569323001652