PSI - Issue 54

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2023) 000–000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 54 (2024) 156–163

© 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 ICSI 2023 organizers Abstract A number of engineering components, such as gears, shafts, and bearings, are frequently subjected to high and very localized, static and dynamic stresses and strains. In order to increase the load-carrying capacity and durability of such components, various types of treatments may be applied, primarily including heat treatments. In particular, surface heat treatments are used to selectively enhance the load-bearing capacity of the most heavily stressed regions of the component. As a consequence, the resulting material exhibits a surface layer that is considerably harder and stronger than the material at the core. Such materials, possessing gradually varying material properties, are known as functionally graded materials (FGMs) and with them, the aim is to improve the structural integrity of components in an optimal, targeted manner. In this study, a finite element analysis of the stress-strain response of unnotched and notched specimens made from homogeneous and functionally graded low-alloy steel 42CrMo4 subjected to static loading was performed. Results of the mechanical response of specimens with homogeneous and functionally graded material properties are presented in this study, highlighting significant differences. © 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 ICSI 2023 organizers Keywords: Functionally graded materials ; Unnotched and notched specimen ; Finite element analysis International Conference on Structural Integrity 2023 (ICSI 2023) Finite element analysis of unnotched and notched functionally graded steel specimens Ela Marković a* , Robert Basan a , Jelena Srnec Novak a,b , Andrej Žerovnik c a University of Rijeka, Faculty of Engineering, Vukovarska 58, 51000 Rijeka, Croatia b University of Rijeka, Centre for Micro- and Nanosciences and Technologies, Radmile Matej č i ć 2, 51000 Rijeka, Croatia c University of Ljubljana, Faculty of Mechanical Engineering, Ašker č eva c. 6, 1000 Ljubljana, Slovenia

* Corresponding author. Tel.: +385-51-554-530; fax: +385-51-554-530. E-mail address: emarkovic@riteh.hr

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 ICSI 2023 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 the scientific committee of the ICSI 2023 organizers 10.1016/j.prostr.2024.01.068