PSI - Issue 61

Available online at www.sciencedirect.com Available online at www.sciencedirect.com Available online at www.sciencedirect.com

ScienceDirect

Procedia Structural Integrity 61 (2024) 277–284 Structural Integrity Procedia 00 (2024) 000–000 Structural Integrity Procedia 00 (2024) 000–000

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

© 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 the scientific committee of IWPDF 2023 Chairman Abstract Magnesium is among the lightest structural metals with a high strength-to-weight ratio. A widespread adoption of magnesium alloys in the industry, however, is impeded by its unorthodox mechanical behavior. The vast di ff erences between activation ener gies of the slip systems in HCP magnesium, combined with profuse (and abrupt) activity of tensile twinning leads to an extreme plastic anisotropy. On top, there is intense strain heterogeneity, primarily, linked to the spatial coordination of twinning that also shows a strong dependence on crystallographic texture. The recent experimental e ff orts target a better understanding of magnesium (and validate polycrystal simulations) largely by investigating its mechanical response. In contrast, this work aims to incorporate temperature measurements of the dissipative response of Magnesium during deformation as well as the usual stress-strain mea surements to infer a thermomechanical description of its plastic deformation. To this end, the temperature of a textured magnesium AZ31 sample is recorded under an IR camera. Then, stress and temperature obtained as a function of strain are compared with the output of a coupled thermomechanical Taylor-type crystal plasticity model, posed in the variational framework. © 2024 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http: // creativecommons.org / licenses / by-nc-nd / 4.0 / ) Peer-review under responsibility of the scientific committee of IWPDF 2023. Keywords: magnesium; twinning; plastic dissipation; thermomechanical behavior 3rd International Workshop on Plasticity, Damage and Fracture of Engineering Materials (IWPDF 2023) A thermomechanical investigation of textured Magnesium in an e ff ort to validate crystal plasticity simulations Necdet Ali O¨ zdu¨r a , Sefer Can Erman a , Rian Seghir b , Laurent Stainier b , C. Can Aydıner a, ∗ a Department of Mechanical Engineering, Bog˘azic¸i University, Istanbul 34342, Turkey b Research Institute in Civil and Mechanical Engineering, Ecole Centrale Nantes, Nantes 44321, France Abstract Magnesium is among the lightest structural metals with a high strength-to-weight ratio. A widespread adoption of magnesium alloys in the industry, however, is impeded by its unorthodox mechanical behavior. The vast di ff erences between activation ener gies of the slip systems in HCP magnesium, combined with profuse (and abrupt) activity of tensile twinning leads to an extreme plastic anisotropy. On top, there is intense strain heterogeneity, primarily, linked to the spatial coordination of twinning that also shows a strong dependence on crystallographic texture. The recent experimental e ff orts target a better understanding of magnesium (and validate polycrystal simulations) largely by investigating its mechanical response. In contrast, this work aims to incorporate temperature measurements of the dissipative response of Magnesium during deformation as well as the usual stress-strain mea surements to infer a thermomechanical description of its plastic deformation. To this end, the temperature of a textured magnesium AZ31 sample is recorded under an IR camera. Then, stress and temperature obtained as a function of strain are compared with the output of a coupled thermomechanical Taylor-type crystal plasticity model, posed in the variational framework. © 2024 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http: // creativecommons.org / licenses / by-nc-nd / 4.0 / ) Peer-review under responsibility of the scientific committee of IWPDF 2023. Keywords: magnesium; twinning; plastic dissipation; thermomechanical behavior 3rd International Workshop on Plasticity, Damage and Fracture of Engineering Materials (IWPDF 2023) A thermomechanical investigation of textured Magnesium in an e ff ort to validate crystal plasticity simulations Necdet Ali O¨ zdu¨r a , Sefer Can Erman a , Rian Seghir b , Laurent Stainier b , C. Can Aydıner a, ∗ a Department of Mechanical Engineering, Bog˘azic¸i University, Istanbul 34342, Turkey b Research Institute in Civil and Mechanical Engineering, Ecole Centrale Nantes, Nantes 44321, France

Nomenclature Nomenclature

DIC digital image correlation IRT infrared thermography DIC digital image correlation IRT infrared thermography

∗ Corresponding author. Tel.: + 90 (212) 359 4471 ; fax: + 90 (212) 287 2456. E-mail address: can.aydiner@bogazici.edu.tr ∗ Corresponding author. Tel.: + 90 (212) 359 4471 ; fax: + 90 (212) 287 2456. E-mail address: can.aydiner@bogazici.edu.tr

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 the scientific committee of IWPDF 2023 Chairman 10.1016/j.prostr.2024.06.035 2210-7843 © 2024 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http: // creativecommons.org / licenses / by-nc-nd / 4.0 / ) Peer-review under responsibility of the scientific committee of IWPDF 2023. 2210-7843 © 2024 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http: // creativecommons.org / licenses / by-nc-nd / 4.0 / ) Peer-review under responsibility of the scientific committee of IWPDF 2023.