PSI - Issue 59

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (0000) 000 – 000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (0000) 000 – 000

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

ScienceDirect

Procedia Structural Integrity 59 (2024) 407–412

© 2024 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 DMDP 2023 Organizers Abstract An engineering methodology for calculating the stress-strain state and evaluating the strength of a contrast layered coating of a flat part has been developed under the action of the local load distributed along a line. An external hard part of coating is considered as a piecewise-homogeneous plate, the internal soft layer is subjected to Winkler's hypothesis of the stress and displacement proportionality. The stress distribution in the layered coating was studied and the safety factor was determined depending on the mechanical properties and thickness of the components. The example of simulation was considered for copper/nickel/chrome coating. In general, it was established that the limit state of a non-homogeneous coating could be determined not by the maximum equivalent stress, but by the minimum of the safety factor. . © 2024 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 DMDP 2023 Organizers VII International Conference “In -service Damage of Materials: Diagnostics and Prediction ” (DMDP 2023) Plane deformation of contrast layered coating under local load Ivan Shatskyi a, *, Mykola Makoviichuk a , Liubomyr Ropyak b a Laboratory of modelling of damping systems, Institute for Applied Problems in Mechanics and Mathematics, NAS of Ukraine, 3, Mykytynetska Str., Ivano-Frankivsk, 76002, Ukraine b Department of Computerized Engineering, Ivano-Frankivsk National Technical University of Oil and Gas, 15; Karpatska Str.,76019, Ivano-Frankivsk, Ukraine Abstract An engineering methodology for calculating the stress-strain state and evaluating the strength of a contrast layered coating of a flat part has been developed under the action of the local load distributed along a line. An external hard part of coating is considered as a piecewise-homogeneous plate, the internal soft layer is subjected to Winkler's hypothesis of the stress and displacement proportionality. The stress distribution in the layered coating was studied and the safety factor was determined depending on the mechanical properties and thickness of the components. The example of simulation was considered for copper/nickel/chrome coating. In general, it was established that the limit state of a non-homogeneous coating could be determined not by the maximum equivalent stress, but by the minimum of the safety factor. . © 2024 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 DMDP 2023 Organizers VII International Conference “In -service Damage of Materials: Diagnostics and Prediction ” (DMDP 2023) Plane deformation of contrast layered coating under local load Ivan Shatskyi a, *, Mykola Makoviichuk a , Liubomyr Ropyak b a Laboratory of modelling of damping systems, Institute for Applied Problems in Mechanics and Mathematics, NAS of Ukraine, 3, Mykytynetska Str., Ivano-Frankivsk, 76002, Ukraine b Department of Computerized Engineering, Ivano-Frankivsk National Technical University of Oil and Gas, 15; Karpatska Str.,76019, Ivano-Frankivsk, Ukraine

Keywords: contrast composite coating, local load, stressed state, strength. Keywords: contrast composite coating, local load, stressed state, strength.

1. Introduction A separate niche among numerous methods of surface strengthening of metal parts and products is occupied by methods of applying thin coatings to the surface endowed with the functions of protection against wear and 1. Introduction A separate niche among numerous methods of surface strengthening of metal parts and products is occupied by methods of applying thin coatings to the surface endowed with the functions of protection against wear and

* Corresponding author. Tel.:+380-99-444-4967; fax: +380-342- 547-139. E-mail address: ipshatsky@gmail.com. * Corresponding author. Tel.:+380-99-444-4967; fax: +380-342- 547-139. E-mail address: ipshatsky@gmail.com.

2452- 3216 © 20 24 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 DMDP 2023 Organizers. 2452- 3216 © 20 24 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 DMDP 2023 Organizers.

2452-3216 © 2024 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 DMDP 2023 Organizers 10.1016/j.prostr.2024.04.058