PSI - Issue 53

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

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 53 (2024) 3–11

© 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 Additive manufacturing (AM) is becoming increasingly important in engineering applications due to its technological advantages such as: weight reduction, geometric complexity for functionalised products and near net-shape production. Despite the promising potential, the path towards a complete maturity of AM technology is still challenged by internal defects, which appear to be typical of the process. In particular, metal AM technologies are prone to internal defects, which can have a detrimental effect under fatigue loading. In such a context, the present paper deals with the fatigue life estimation of AISI 316L stainless steel subjected to cyclic loading. More precisely, the fatigue assessment is performed by means of an analytical methodology consisting of the joint application of: (i) a multiaxial stress-based fatigue criterion, named Carpinteri et al. criterion, which exploits the concept of the critical plane, and (ii) a stress averaging method, named Critical Direction Method, in order to determine the orientation of the critical plane. Satisfactory results are here obtained in terms of fatigue life for the examined specimens, regardless of both the specimen geometry (both plain and notched specimens are analysed) and the degree of multiaxiality and non-proportionality. © 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 Keywords: AISI 316L stainless steel; AM; fatigue life Third European Conference on the Structural Integrity of Additively Manufactures Materials (ESIAM23) Fatigue life estimation of additively manufactured AISI 316L stainless steel Andrea Zanichelli*, Andrea Carpinteri, Camilla Ronchei, Daniela Scorza, Sabrina Vantadori Department of Engineering & Architecture, University of Parma, Parco Area delle Scienze 181/A, 43124 Parma, Italy

* Corresponding author. Tel.: +39 0521 905923. E-mail address: andrea.zanichelli@unipr.it

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.2024.01.002