PSI - Issue 48

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2023) 000–000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 48 (2023) 149–154

© 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 IRAS 2023 organizers Abstract Different methods for investigating the jump-like creep of the AMg6 aluminium alloy based on its preliminary plastic deformation during tensile test under the mild loading mode are compared. It is more efficient to predict the magnitude of the jump during the creep by methods of machine learning, in particular, neural networks, which show the best results. It was found that the obtained models can make predictions according to the data that were not used in the training sample. The jump creep simulated by the neural network method agrees with the experimental data. It was determined that the prediction accuracy of neural networks is 96.2% in the test sample. © 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 IRAS 2023 organizers Keywords: AMg6 aluminium alloy; jump-like creep; machine learning; neural networks Second International Symposium on Risk Analysis and Safety of Complex Structures and Components (IRAS 2023) Methods of jump-like creep modeling of AMg6 aluminum alloy Oleh Yasniy a , Iaroslav Pasternak b , Iryna Didych a, *, Sergiy Fedak a , Dmytro Tymoshchuk a a Ternopil Ivan Puluj National Technical University, Ruska str. 56, Ternopil, 46001, Ukraine b Lesya Ukrainka Volyn National University,13 Voli Ave., Lutsk, 43025, Ukraine

* Corresponding author. Tel.: /; fax: /. E-mail address: iryna.didych1101@gmail.com 1. Introduction

Various methods are known to construct the deformation diagrams of aluminium alloy AMg6. In particular, in the paper by Yasnii et al. (2004), jump-like deformation of AMg6 alloy in tension was investigated, while in the article by Yasnii et al. (2002) effect of the cyclic tensile load component on the dislocation structure of AMg6 alloy showed. In the paper by Yasnii et al. (2004) relationship between plastic deformation and microstructural parameters under active tensile and creep conditions of AMg6 alloy was investigated. In the paper by Yasniy et al. (2010) the discontinuous deformation in Al-6%Mg alloy is simulated.

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 IRAS 2023 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 IRAS 2023 organizers 10.1016/j.prostr.2023.07.141