PSI - Issue 33

ScienceDirect Available online at www.sciencedirect.com ScienceDirect Procedia Structural Integrity 00 (2021) 000–000 Available online at www.sciencedirect.com ScienceDirect Procedia Structural Integrity 00 (2021) 000–000

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Procedia Structural Integrity 33 (2021) 1219–1224

© 2021 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 IGF ExCo © 2021 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 Statement: Peer-review under responsibility of the scientific committee of the IGF ExCo In this paper a study is present d of the fr cture behaviour in the pres nce of notch s of high-strength pearlitic steel with different cold drawing degree. To this nd, xisy etric notched sampl with a circumf rentially-shaped notch of v ry distinct ge metries (sharp nd blunt, deep and sh llow) were taken from wir s with different levels of drawing from th ini al hot rolled bar ( ot cold d awn t all) to the final commercial product (prestressing steel wir : heavily cold drawn). Exp rimental results show that cold drawn steels exhibit a ma kedly anisotropic fracture be aviour in the form of fracture path dev ation from the original tr nsv rse fracture path perpendicular to the wire axis or cold drawing direction. Present paper proposes a key variable governing the notch-induced anisotropic fracture process: the cleavage hoop stress as the relevant factor promoting this sort of fracture path deviation in the most heavily cold drawn pearlitic steel wires © 2021 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) P er-review St tement: Peer-review under responsibility of the scientific committee of the IGF ExCo IGF26 - 26th International Conference on Fracture and Structural Integrity On the cleavage hoop stress responsible for crack path deflection and notch-induced anisotropic fracture in cold drawn pearlitic steel: Revisiting John Ford’s Monument Valley Jesús Toribio*, Francisco-Javier Ayaso Fracture & Structural Integrity Research Group (FSIRG), University of Salamanca (USAL) E.P.S., Campus Viriato, Avda. Requejo 33, 49022 Zamora, Spain IGF26 - 26th International Conference on Fracture and Structural Integrity On the cleavag hoop st ess responsible f r crack path deflection and notch-induced a isotropic fracture i cold drawn pearlitic steel: Revisiting John Ford’s Monument Valley Jesús Toribio*, Francisco-Javier Ayaso Fracture & Structural Integrity Research Group (FSIRG), University of Salamanca (USAL) E.P.S., Campus Viriato, Avda. Requejo 33, 49022 Zamora, Spain Abstract In this paper a study is presented of the fracture behaviour in the presence of notches of high-strength pearlitic steel with different cold drawing degree. To this end, axisymmetric notched samples with a circumferentially-shaped notch of very distinct geometries (sharp and blunt, deep and shallow) were taken from wires with different levels of drawing from the initial hot rolled bar (not cold drawn at all) to the final commercial product (prestressing steel wire: heavily cold drawn). Experimental results show that cold drawn steels exhibit a markedly anisotropic fracture behaviour in the form of fracture path deviation from the original transverse fracture path perpendicular to the wire axis or cold drawing direction. Present paper proposes a key variable governing the notch-induced anisotropic fracture process: the cleavage hoop stress as the relevant factor promoting this sort of fracture path deviation in the most heavily cold drawn pearlitic steel wires Abstract Keywords: cleavage stress; notch tensile strength; anisotropic fracture; crack path deflection; cold-drawn pearlitic steel.

Keywords: cleavage stress; notch tensile strength; anisotropic fracture; crack path deflection; cold-drawn pearlitic steel.

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

2452-3216 © 2021 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 Statement: Peer-review under responsibility of the scientific committee of the IGF ExCo 2452-3216 © 2021 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 Statement: Peer-review under responsibility of the scientific committee of the IGF ExCo * Corresponding author. Tel.: +34-677566723; fax: +34-980545002. E mail address: toribio@usal.es

2452-3216 © 2021 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 IGF ExCo 10.1016/j.prostr.2021.10.139