PSI - Issue 50

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

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

ScienceDirect

Procedia Structural Integrity 50 (2023) 6–10

© 2023 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 the MRDMS 2022 organizers Abstract The report is devoted to thermal control of structural parts during their operation. The control is based on the use of a thermoplastic effect, which allows you to determine the places of the greatest plastic deformations. © 2023 R.S.Akhmetkhanov. 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 the MRDMS 2022 organizers Keywords. thermoplastic effect, sliding lines, profile, temperature . 1. Introduction Real structural materials have various defects and cracks; they have their own characteristic geometric features and do not have that ideal appearance, which is accepted in calculations of their fracture. The crack fracture surface formed by the fracture of structural materials is characterized by the presence of irregularities of various sizes and shapes depending on the mechanical properties of the material. Depending on the structural features of the structural material of the control sample (RS) and the conditions of deformation (ambient temperature, strain rate), the type of fracture changes. The first step of fracture is the formation of sub-microscopic cracks, and they further develop to the size of micro-cracks, individual sub-micro-cracks merge into micro-cracks (Plokhoe A.V., at etc., 2017 ) . For example, an important feature of ductile fracture is the formation of multiple micro-cracks and their growth, and then with increasing strain, some of them merge with each other. This process requires a large amount of plastic strain to propagate the ductile crack and fracture the material. This process converts the mechanical strain energy Abstract The report is devoted to thermal control of structural parts during their operation. The control is based on the use of a thermoplastic effect, which allows you to determine the places of the greatest plastic deformations. © 2023 R.S.Akhmetkhanov. 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 the MRDMS 2022 organizers Keywords. thermoplastic effect, sliding lines, profile, temperature . 1. Introduction Real structural materials have various defects and cracks; they have their own characteristic geometric features and do not have that ideal appearance, which is accepted in calculations of their fracture. The crack fracture surface formed by the fracture of structural materials is characterized by the presence of irregularities of various sizes and shapes depending on the mechanical properties of the material. Depending on the structural features of the structural material of the control sample (RS) and the conditions of deformation (ambient temperature, strain rate), the type of fracture changes. The first step of fracture is the formation of sub-microscopic cracks, and they further develop to the size of micro-cracks, individual sub-micro-cracks merge into micro-cracks (Plokhoe A.V., at etc., 2017 ) . For example, an important feature of ductile fracture is the formation of multiple micro-cracks and their growth, and then with increasing strain, some of them merge with each other. This process requires a large amount of plastic strain to propagate the ductile crack and fracture the material. This process converts the mechanical strain energy 16th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures (MRDMS 2022) Method of estimation of local plastic stresses of structures by means of thermal control R.S. Akhmetkhanov* A.A. Blagonravov Institute of Mechanical Engineering. 101990, 4, Maly Kharitonievsky lane, Moscow, Russian Federation 16th International Conference on Mechanics, Resource and Diagnostics of Materials and Structures (MRDMS 2022) Method of estimation of local plastic stresses of structures by means of thermal control R.S. Akhmetkhanov* A.A. Blagonravov Institute of Mechanical Engineering. 101990, 4, Maly Kharitonievsky lane, Moscow, Russian Federation

* Corresponding author. Tel.: + 7-910-427-7874. E-mail address: ahtan54@mail.ru * Corresponding author. Tel.: + 7-910-427-7874. E-mail address: ahtan54@mail.ru

2452-3216 © 2023 R.S.Akhmetkhanov. 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 the MRDMS 2022 organizers 2452-3216 © 2023 R.S.Akhmetkhanov. 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 the MRDMS 2022 organizers

2452-3216 © 2023 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 the MRDMS 2022 organizers 10.1016/j.prostr.2023.10.015