PSI - Issue 46

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

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 46 (2023) 35–41

© 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 ICSID 2021 Organizers Abstract In this work, the Low Cycle Fatigue (LCF) performance of a weight optimized SLM Ti-6Al-4V bracket in a ‘struts & connectors’ shape has been investigated through the displacement controlled LCF testing at 200  C. The bracket was designed to operate under Thermo-mechanical loading, i.e. an elevated temperature environment under mechanical loading, during engine normal operation. The bracket was demonstrated to have met the LCF target cycles for the defined displacement loading, which simulated the maximum possible loading under aero-engine flight operations. Subsequently the same bracket was also subjected to a higher level of cyclic displacement loading to allow the bracket to experience some level of plastic strains in the structure, to assess the LCF performance of the bracket under the one-off extreme event such as a Fan Blade Off event. The successful outcome of the elevated temperature LCF testing of the bracket is a significant forward step towards adopting SLM technology for safety critical load bearing applications. © 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) 5th International Conference on Structural Integrity and Durability Low cycle fatigue performance of SLM Ti-6Al-4V aero-engine bracket at 200  C: An experimental study Alok Gupta a,b , Chris J. Bennett b , Wei Sun b a ITP Aero UK Ltd, Harrier Business Park, Dorey Way, Hucknall, NG15 6EU, United Kingdom b Gas Turbine and Transmissions Research Centre (G2TRC), Faculty of Engineering, University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom

Peer-review under responsibility of ICSID 2021 Organizers. Keywords : Selective Laser Melting; Bracket; Low Cycle Fatigue; Fracture

* Corresponding author. +44-7775404077 E-mail address: alok.gupta@nottingham.ac.uk

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 ICSID 2021 Organizers.

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 ICSID 2021 Organizers 10.1016/j.prostr.2023.06.007