PSI - Issue 28

ScienceDirect Available online at www.sciencedirect.com ScienceDirect Procedia Structural Integrity 00 (2020) 000–000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Procedia Structural Integrity 00 (2020) 000–000

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

Procedia Structural Integrity 28 (2020) 2386–2389

© 2020 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 European Structural Integrity Society (ESIS) ExCo © 2020 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 European Structural Integrity Society (ESIS) ExCo Abstract The aim of this paper is to analyze the effect of diverse cyclic loading conditions on the residual stress field in cold-drawn pearlitic steel wires. To this end, on one hand, a numerical simulation by the finite element method of the manufacturing process (cold drawing) of a prestressing steel wire was carried out for revealing the residual stress state induced by the manufacture technique. On the other hand, a numerical simulation was performed of the in-service fatigue loading applied to a cold drawn wire (including the manufacturing-induced residual stress-strain state). According to the obtained results, the plastic strain generated during fatigue loading causes a reduction of the initial residual stress at the surface and a redistribution of the residual stress field. © 2020 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 European Structural Integrity Society (ESIS) ExCo 1st Virtual European Conference on Fracture The role of local plasticity in the redistribution of stress fields caused by in-service fatigue overloads Jesús Toribio*, Miguel Lorenzo, Diego Vergara, Leticia Aguado Fracture & Structural Integrity Research Group (FSIRG), University of Salamanca (USAL) E.P.S., Campus Viriato, Avda. Requejo 33, 49022 Zamora, Spain Abstract The aim of this paper is to analyze the effect of diverse cyclic loading conditions on the residual stress field in cold-drawn pearlitic steel wires. To this end, on one hand, a numerical simulation by the finite element method of the manufacturing process (cold drawing) of a prestressing steel wire was carried out for revealing the residual stress state induced by the manufacture technique. On the other hand, a numerical simulation was performed of the in-service fatigue loading applied to a cold drawn wire (including the manufacturing-induced residual stress-strain state). According to the obtained results, the plastic strain generated during fatigue loading causes a reduction of the initial residual stress at the surface and a redistribution of the residual stress field. 1st Virtual European Conference on Fracture The role of local plasticity in the redistribution of stress fields caused by in-service fatigue overloads Jesús Toribio*, Miguel Lorenzo, Diego Vergara, Leticia Aguado Fracture & Structural Integrity Research Group (FSIRG), University of alamanca (USAL) E.P.S., Campus Viriato, Avda. Requejo 33, 49022 Zamora, Spain 1. Introduction Residual stresses appear in cold-drawn prestressing steel due to the non-uniform distribution of plastic strain generated during wire drawing (Yang et al. , 2008). This stress-strain state plays a key role in degradation phenomena related to hydrogen damage (Toribio et al. , 2011; Sant´Anna et al. , 2016). 1. Introduction Residual stresses appear in cold-drawn prestressing steel due to the non-uniform distribution of plastic strain generated during wire drawing (Yang et al. , 2008). This stress-strain state plays a key role in degradation phenomena related to hydrogen damage (Toribio et al. , 2011; Sant´Anna et al. , 2016). Keywords: finite elements; local plasticity; stress field; fatigue; overloads; cold drawing. Keywords: finite elements; local plasticity; stress field; fatigue; overloads; cold drawing.

* Corresponding author. Tel.: +34-677566723; fax: +34-980545002. E-mail address: toribio@usal.es * Corresponding author. Tel.: +34-677566723; fax: +34-980545002. E-mail address: toribio@usal.es

2452-3216 © 2020 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 European Structural Integrity Society (ESIS) ExCo 2452-3216 © 2020 The Authors. Published by ELSEVIER B.V. This is an ope access article under t CC BY-NC-ND license (https://cr ativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the European Structural Integrity Society (ESIS) ExCo

2452-3216 © 2020 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 European Structural Integrity Society (ESIS) ExCo 10.1016/j.prostr.2020.11.087