PSI - Issue 51

J. Majko et al. / Procedia Structural Integrity 51 (2023) 160–165

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J. Majko et al. / Structural Integrity Procedia 00 (2022) 000–000

the specimens was comparable to the quality of specimens printed from properly stored material. However, the problem of interlaminar bonding arose. The problem was resolved by increasing the printing bed temperature to the maximum. In the subsequent tensile test, the specimens made of wet nylon reinforced with chopped carbon fibres reached tensile strength comparable to that of properly stored material. The authors have shown that one of the possibilities of printing wet nylon is the adjustment of printing parameters. In the future, the authors plan to build on this initial study and publish a comprehensive assessment of the impact of such settings on tensile properties (yield strength, strains at yielding, strains at failure, failure type), impact toughness and flexural properties. In addition, a similar assessment will be carried out on specimens made of pure nylon. Acknowledgements This work has been supported by KEGA 054ŽU-4/2021. References ASTM International, 2014. ASTM D638-14, Standard Test Method for Tensile Properties of Plastics. Available online: www.astm.org Chua, C.K., Leong, K.F., Lim, C.S., 2010. Rapid Prototyping: Principles and Applications, 5th edition. World Scientific, Singapore, pp.512 Gljušćić, M., Franulović, M., Lanc, D., Božić, Ž., 2022. Application of digital image correlation in behavior modelling of AM CFRTP composites. Engineering Failure Analysis 136, 106133. Goh, G.D., Yap, Y.L., Agarwala, S., Yeong, W.Y., 2019. Recent progress in additive manufacturing of fiber reinforced polymer composite. Advanced Materials Technologies 4, 1800271. Humeau, C., Davies, P., LeGac, PY., Jacquemin, F., 2018. Influence of water on the short and long term mechanical behaviour of polyamide 6 (nylon) fibres and yarns. Multiscale and Multidisciplinary Modeling, Experiments and Design 1, 317–327. Jones, R.M., 1999. Mechanics of Composite Materials, 2nd edition. Taylor & Francis Group, New York, pp. 538. Kastratović, G., Grbović, A., Sedmak, A., Božić, Ž., Sedmak, S., 2021. Composite material selection for aircraft structures based on experimental and numerical evaluation of mechanical properties. Procedia Structural Integrity 31, 127-133. Khalid, M.Y., Al Rashid, A., Arif, Z.U., Ahmed, W., Arshad, H., Zaidi, A.A., 2021. Natural fiber reinforced composites: Sustainable materials for emerging applications. Results Engineering 11, 100263. Krawiec, P., Czarnecka-Komorowska, D., Warguła, Ł., Wojciechowski, S., 2021. Geometric Specification of Non-Circular Pulleys Made with Various Additive Manufacturing Techniques. Materials 14, 1682. Majko, J., Vaško, M., Handrik, M., Sága, M., 2022. Tensile Properties of Additively Manufactured Thermoplastic Composites Reinforced with Chopped Carbon Fibre. Materials 15, 4224. Markforged, 2022. Material Datasheet Composites. Available online: markforged.com (accessed on 10 November 2022). Marsalek, P., Sotola, M., Rybansky, D., Repa, V., Halama, R., Fusek, M., Prokop, J., 2021. Modeling and Testing of Flexible Structures with Selected Planar Patterns Used in Biomedical Applications. Materials 14, 140. Rojek, I., Mikołajewski, D., Dostatni, E., Macko, M., 2020. AI-Optimized Technological Aspects of the Material Used in 3D Printing Processes for Selected Medical Applications. Materials 13, 5437. Šofer, M., Cienciala, J., Fusek, M., Pavlíček, P., Moravec, R., 2021. Damage Analysis of Composite CFRP Tubes Using Acoustic Emission Monitoring and Pattern Recognition Approach. Materials 14, 786. .