PSI - Issue 61

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

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 61 (2024) 252–259

© 2024 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 IWPDF 2023 Chairman Abstract Additive manufacturing (AM), known as three-dimensional (3D) printing, is an innovative technology that has found applications in the construction industry. Due to the intrinsic layer-by-layer manufacturing process, interlayer bond strength is a key that needs to be investigated and improved, to ensure the reliability and suitability of the technology. In fracture tests, the orientation of the layers and their interfaces strongly affect the responses and hence stability of the tests. Fracture can happen very abruptly and hence can be out of control due to weak interfaces between layers, particularly in indirect tensile tests on disc specimens. In this study, the use of AUSBIT (Adelaide University Snapback Indirect Tensile test) facilitates the investigation of pre- and post-peak behaviour of the 3D printed disc specimens thanks to its ability to stabilize the cracking process in Brazilian disc testing. This prevents abrupt or instant failure of disc specimens and hence can allow more time for the use of advanced image-based instrumentation. In combination with AUSBIT, Digital Image Correlation (DIC) enables observation of full-field strain distributions and their evolutions. © 2024 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 IWPDF 2023 Keywords: 3D printing; Brazilian disc; indirect tension; fracture; snap-back; interlayer bond strength; layer orientation. 3rd International Workshop on Plasticity, Damage and Fracture of Engineering Materials (IWPDF 2023) Application of Adelaide University Snapback Indirect Tensile test (AUSBIT) on 3D Printed Cement-based Materials Zili Huang a , Weiyi Yang a , Rupesh Verma a , Giang D. Nguyen a,* , Tran T. Tung b , and Murat Karakus b a School of Architecture and Civil Engineering, University of Adelaide, Adelaide SA 5005, Australia; b School of Chemical Engineering and Advanced Materials, University of Adelaide, Adelaide SA 5005, Australia

* Corresponding author. Tel.: +61-8-83132259. E-mail address: g.nguyen@adelaide.edu.au / giang.nguyen@trinity.oxon.org

2452-3216 © 2024 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 IWPDF 2023

2452-3216 © 2024 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 IWPDF 2023 Chairman 10.1016/j.prostr.2024.06.032