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) 309–314

© 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 High-performance composite materials generally respond in a manner close to that of linear-elastic materials with brittle failure in many cases. However, when the mechanical behaviour of the matrix is predominant, these composites show non-linear elasticity, viscous effects, and plastic deformations before failure. Therefore, these materials should be analysed to understand their response in long-term applications. For this purpose, the mechanical response of a composite reinforced with short carbon fibres and graphene subjected to monotonic tensile tests, as well as cyclic tests at constant load and repeated progressive load will be evaluated. The results showed that this type of composite, and all those with similar behaviour, require a complex model to predict their mechanical behaviour. © 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: Fused filament fabrication (FFF); Monotonic response; Cyclic tensile loading. 1. Introduction Recently, there has been enormous interest in the various additive manufacturing methods. According to the ASTM 52900-15 standard (ISO/ASTM, 2015), there are 7 additive manufacturing technologies, where the FFF (fused filament fabrication) technique, as part of the group of material extrusion technologies, has been widely used due to Third European Conference on the Structural Integrity of Additively Manufactures Materials (ESIAM23) Characterization of a 3D Printed Composite under Monotonic and Cyclic Tensile Loading P.N.B. Reis a, *, J.A.M. Ferreira a , J.D.M. Costa a a University of Coimbra, CEMMPRE, ARISE, Department of Mechanical Engineering, Rua Luis Reis dos Santos, 3030-788 Coimbra, Portugal

* Corresponding author. E-mail address: paulo.reis@dem.uc.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 10.1016/j.prostr.2024.01.038