PSI - Issue 53

Available online at www.sciencedirect.com Structural Integrity Procedia 00 (2022) 000–000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2022) 000–000 Available online at www.sciencedirect.com ScienceDirect

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Procedia Structural Integrity 53 (2024) 221–226

© 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 scientific committee of the ESIAM23 chairpersons Abstract Industries today must create new structures that are lighter, use less resources, and keep the same mechanical performance. Among the various types of materials, the auxetic ones are very interesting due to their negative Poisson's ratio and properties such as higher indentation resistance, higher shear modulus, fracture toughness, and sound absorption. Therefore, the main goal of this paper is to present a summary of the works that have been published in the literature about the fatigue behavior of auxetic materials. It was possible to conclude that auxetic structures can provide an improvement in fatigue behavior when compared to a non-auxetic structure, however, the studies available in the literature are not sufficient to establish a complete knowledge about their fatigue response. In this context, this subject should be addressed in future works. © 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 scientific committee of the ESIAM23 chairpersons Third European Conference on the Structural Integrity of Additively Manufactures Materials (ESIAM23) Fatigue behaviour of 3d printed auxetic materials: An overview J.M. Parente a, *, P.N.B. Reis b a C-MAST, Dep. of Electromechanical Engineering, University of Beira Interior, Calçada Fonte do Lameiro, 6201-100 Covilhã, Portugal b University of Coimbra, CEMMPRE, ARISE, Department of Mechanical Engineering, 3030-788 Coimbra, Portugal Abstract Industries today must create new structures that are lighter, use less resources, and keep the same mechanical performance. Among the various types of materials, the auxetic ones are very interesting due to their negative Poisson's ratio and properties such as higher indentation resistance, higher shear modulus, fracture toughness, and sound absorption. Therefore, the main goal of this paper is to present a summary of the works that have been published in the literature about the fatigue behavior of auxetic materials. It was possible to conclude that auxetic structures can provide an improvement in fatigue behavior when compared to a non-auxetic structure, however, the studies available in the literature are not sufficient to establish a complete knowledge about their fatigue response. In this context, this subject should be addressed in future works. © 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 scientific committee of the ESIAM23 chairpersons Third European Conference on the Structural Integrity of Additively Manufactures Materials (ESIAM23) Fatigue behaviour of 3d printed auxetic materials: An overview J.M. Parente a, *, P.N.B. Reis b a C-MAST, Dep. of Electromechanical Engineering, University of Beira Interior, Calçada Fonte do Lameiro, 6201-100 Covilhã, Portugal b University of Coimbra, CEMMPRE, ARISE, Department of Mechanical Engineering, 3030-788 Coimbra, Portugal 1. Introduction In order to maintain mechanical performance while using fewer materials, modern industries must develop new and lighter materials (Ren et al. (2018), Yu et al. (2018)). The auxetic materials are among the most interesting due to their negative Poisson's ratio and other characteristics, including higher indentation resistance, higher shear modulus, 1. Introduction In order to maintain mechanical performance while using fewer materials, modern industries must develop new and lighter materials (Ren et al. (2018), Yu et al. (2018)). The auxetic materials are among the most interesting due to their negative Poisson's ratio and other characteristics, including higher indentation resistance, higher shear modulus, Keywords: Fatigue; Auxetic materials; Additive manufacturing. Keywords: Fatigue; Auxetic materials; Additive manufacturing.

* Corresponding author. Tel.: +0-000-000-0000 ; fax: +0-000-000-0000 . E-mail address: joao.miguel.parente@ubi.pt * Corresponding author. Tel.: +0-000-000-0000 ; fax: +0-000-000-0000 . E-mail address: joao.miguel.parente@ubi.pt

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 scientific committee of the ESIAM23 chairpersons 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 scientific committee of the ESIAM23 chairpersons

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 scientific committee of the ESIAM23 chairpersons 10.1016/j.prostr.2024.01.027