PSI - Issue 31

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000–000

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ScienceDirect

Procedia Structural Integrity 31 (2021) 116–121

4th International Conference on Structural Integrity and Durability, ICSID 2020 Digital image correlation of additively manufactured CFRTP

composite systems in static tensile testing M. Gljušćić a , M. Franulović a* , D. Lanc a , Ž. Božić b a University of Rijeka, Faculty of Engineering, Vukovarska 58, 51000 Rijeka, Croatia b University of Zagreb, Faculty of Mech. Eng. And Nav. Arch., I. Lu č i ć a 5, 10000 Zagreb, Croatia

© 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 2020 Organizers. Abstract Additive manufacturing of polymers results in low strength and inherently defective parts with limited application, hence the reason for selectively reinforcing the material using continuous fibers for improving the mechanical properties for which there are indications deviation from the classical laminate theory (CLT) theory and the rule of mixture, as well as a significant influence of manufacturing defects on the overall mechanical properties. Although the results in the mechanical behavior analysis of these materials are scarce today, authors up to date have documented some mechanical properties under tensile loading without interruption. Therefore, eight sets of CFRTP test specimens were designed and additively manufactured according to ASTM-D3039 varying the layer stacking sequences and prepared for digital image correlation (DIC) measurement. Finally, the prepared specimens were statically tested over three consecutive phases of progressive tensile loading and unloading using an axial testing machine, while the displacements were monitored and measured using the GOM-Aramis DIC system . © 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 2020 Organizers. Keywords: Additive manufacturing; Continuous fiber composites; Digital image correlation 1. Introduction Additive technology has recently grown from experimental rapid prototyping to the production functional engineering components for various applications, Ngo et al. (2018); Schubert et al. (2014), but the inherent poor quality

* Corresponding author. Tel.: +385 51 651533. E-mail address: marina.franulovic@riteh.hr

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 2020 Organizers.

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 2020 Organizers. 10.1016/j.prostr.2021.03.019