PSI - Issue 40

ScienceDirect Structural Integrity Procedia 00 (2022) 000 – 000 Structural Integrity Procedia 00 (2022) 000 – 000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDire t Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 40 (2022) 359–364

© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the15th International Conference on Mechanics, Resources and Diagnostics of Materials and Structures. Abstract The paper presents results of studying the effect of tensile deformation of the 20GN hull steel to various levels of plastic strain on the behavior of its magnetic characteristics, including linear magnetostriction. The deformation behavior of the magnetic characteristics indicates a change in the type of magnetic texture caused by large residual compressive stresses along the tensile axis. It is shown experimentally that the levels of plastic strain at which the behavior of the magnetic parameters changes are the same for all studied magnetic characteristics. The results can be used to develop methods of nondestructive testing of the strained state of structural components made of the 20GN steel, which suffer plastic deformation during operation. © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the15th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures. Keywords: plastic deformation; uniaxial tension; differential magnetic permeability; magnetostriction 1. Introduction Evaluation of plastic strain caused by tensile loads and the level of internal mechanical stresses in elements of metal structures is a significant task of nondestructive testing. Numerous studies discuss this problem. We will mention only some of them: Chen et al. (2014), Dhar et al. (2001), Gorkunov et al. (2017), Gorkunov et al. (2009), 15th International Conference on Mechanics, Resource and Diagnostics of Materials and Stru tures Effect of plastic deformation on the magnetic parameters and magnetostriction of the 20GN steel A.M. Povolotskaya*, A.N. Mushnikov Institute of Engineering Science, Ural Branch of the Russian Academy of Sciences, 34 Komsomolskaya St., Ekaterinburg, 620049, Russia Abstract The paper presents results of studying the effect of tensile deformation of the 20GN hull steel to various levels of plastic strain on the behavio of its magnetic characteristics, including linear mag etostriction. The d formation behavior of the mag etic c aracteristics indicates a change in th type of magnetic textu e c us d by large residual c pressive stresses along the te sile axis. I is how experiment lly that lev ls of plastic s rain at which the behavior of the magn tic paramet rs changes are th same for all studi d magnetic char cteristics. The results can be used to develop meth ds of nond structive t sting of th strained tat of structural co po nts m de of the 20GN st el, which suff r plastic defor a i n duri g operation. © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review u der re ponsibility of scientific committe of the15th Int rnational Co ference on Mechanics, Resource and Diagnostics of Materials and S ructur s. Keywords: plastic defo matio ; uniaxial tension; differential magnetic permeability; magnetostriction 1. Introduction Evaluation of plastic strain caused by tensile loads and the level of internal mechanical stresses in elements of metal structures is a significant task of no destructive testing. Numerous studies discuss this problem. We will ntion only some of them: Chen et al. (2014), Dhar et al. (2001), Gorkunov et al. (2017), Gorkun v t al. (2009), 15th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures Effect of plastic deformation on the magnetic parameters and magnetostriction of the 20GN steel A.M. Povolotskaya*, A.N. Mushnikov Institute of Engineering Science, Ural Branch of the Russian Academy of Sciences, 34 Komsomolskaya St., Ekaterinburg, 620049, Russia

* Corresponding author. Tel.: +7 912 242 2109; fax: +7 343 374 5930. E-mail address: anna.povolotskaya.68@mail.ru * Corresponding author. Tel.: +7 912 242 2109; fax: +7 343 374 5930. E-mail ad ress: anna.povolotskaya.68@mail.ru

2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the15th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures. 2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review u der re ponsibility of scientific committe of the15th Int rnational C ference o Mechanics, Resource and Diagnostics of Mate ials and Structures.

2452-3216 © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the15th International Conference on Mechanics, Resources and Diagnostics

of Materials and Structures. 10.1016/j.prostr.2022.04.048