PSI - Issue 34

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

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ScienceDirect

Procedia Structural Integrity 34 (2021) 166–171

© 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 Esiam organisers Abstract In the present paper, the fatigue behaviour of AM Ti-6Al-4V specimens under both uniaxial and biaxial cyclic loading is theoretically examined. In particular, fatigue tests available in the literature are simulated by means of a critical plane-based fatigue criterion proposed in the past by Carpinteri et al. The accuracy of the criterion is evaluated by comparing the theoretical results in terms of fatigue life with the experimental ones. Fatigue life is computed by using an equivalent strain amplitude (also named fatigue damage parameter) together with the tensile Manson-Coffin curve. © 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 scientific committee of the Esiam organisers Keywords: AM Ti-6Al-4V specimens; critical plane-based criterion; fatigue life assessment. 1. Introduction Nowadays, Additive Manufacturing (AM) is a widespread technology employed to realise complex geometries, with a significant reduction of fabrication time with respect to traditional manufacturing methods. Moreover, the improved performance of AM includes also a lightweight design, which is of fundamental importance in aerospace Abstract In the present paper, the fatigue behaviour of AM Ti-6Al-4V specimens under both uniaxial and biaxial cyclic loading is theor tically examined. In particular, fatigue tests ava lable in the literature ar simulated by means of a critical p ane-based fatigue riterion proposed in the past by Carpint ri et al. Th accuracy of th criter on is valuated by c mpa ing the theoretical results in ms of fatigue life with the experimental ones. Fatigue life is computed by u ing an equivalent stra amplitude (also named fatigue damage parameter) tog ther w th the te sile Manson-Coffin curve. © 2020 The Authors. Publish d 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 u der re ponsibility of scientific committe of the E iam organisers K ywords: AM Ti-6Al-4V specimens; critical plane-based criterion; fa igue life assessment. 1. Introduction Nowadays, Additive Manufacturing (AM) is a widespread technology employed to realise complex geometries, with a significant reduction o fab ication time with r s ect to traditi nal anufacturing m th ds. Mor v r, the improved performance of AM includes also a lightweight design, which is of f ndame tal imp rtance in aerospac The second European Conference on the Structural Integrity of Additively Manufactured Materials Fatigue behaviour assessment of additive manufactured Ti-6Al-4V by means of a critical plane criterion Camilla Ronchei a *, Sabrina Vantadori b , Daniela Scorza c , Andrea Zanichelli b , Andrea Carpinteri b a Department of Civil Engineering, University of Calabria, via Pietro Bucci, 87036 Arcavacata di Rende (CS), Italy b Department of Engineering & Architecture, University of Parma, Parco Area delle Scienze 181/A, 43124 Parma, Italy c Department of Engineering, University of Naples Parthenope, Centro Direzionale Isola C4, 80143 Napoli, Italy The second European Conference on the Structural Integrity of Additively Manufactured Ma erials Fatigue behaviour assessment of additive manufactured Ti-6Al-4V by means of a critical plane criterion Camilla Ronchei a *, Sabrina Vantadori b , Daniela Scorza c , Andrea Zanichelli b , Andrea Carpinteri b a Department of Civil Engineering, University of Calabria, via Pietro Bucci, 87036 Arcavacata di Rende (CS), Italy b Department of Eng neering & Architecture, University of Parma, Parco Area delle Scienze 181/A, 43124 Parma, Italy c Department of E gineering, Univ rsity of Naple Parthenope Centro Direzionale Isola C4, 801 Napoli, Italy

* Corresponding author. Tel.: +39-0984-496866; +39-0521-905923. E-mail address: camilla.ronchei@unical.it * Corresponding author. Tel.: +39-0984-496866; +39-0521-905923. E-mail ad ress: camilla.ronchei@unical.it

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 scientific committee of the Esiam organisers 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 u der re ponsibility of scientific committe of the E iam organisers

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 Esiam organisers 10.1016/j.prostr.2021.12.024