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Article

3D Printed Hollow Off-Axis Profiles Based on Carbon Fiber-Reinforced Polymers: Mechanical Testing and Finite Element Method Analysis

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Center for Advanced Innovation Technologies, VSB-TU Ostrava, 17. Listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
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Department of Production Engineering, Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 275, 760 01 Zlin, Czech Republic
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Center of 3D Printing Protolab, Department of Machining, Assembly and Engineering Technology, Faculty of Mechanical Engineering, VSB-TU Ostrava, 17. Listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
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Orthopedic Prosthetics Frydek-Mistek, Dr. Janskeho 3238, 738 01 Frydek-Mistek, Czech Republic
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Authors to whom correspondence should be addressed.
Academic Editors: Giorgio Luciano, Paola Stagnaro and Maurizio Vignolo
Polymers 2021, 13(17), 2949; https://doi.org/10.3390/polym13172949
Received: 28 July 2021 / Revised: 23 August 2021 / Accepted: 26 August 2021 / Published: 31 August 2021
The aim of the paper is to design, manufacture, and test an off-axis composite profile of circular cross-section. Composite profile based on continuous carbon fibers reinforcing the onyx matrix, i.e., a matrix that consists of nylon and micro carbon fibers, was produced by fused deposition modeling (FDM) method. A buckling test of the six printed composite specimens was performed on a tensile test machine. The values of the experiment were compared with the values of the computational simulation using the Finite Element Method (FEM) analysis. The mean value of the experimentally determined critical force at which the composite profile failed was 3102 N, while the value of the critical force by FEM analysis was calculated to be 2879 N. Thus, reliability of the simulation to determine the critical force differed from the experimental procedure by only 7%. FEM analysis revealed that the primary failure of 3D printed composite parts was not due to loss of stability, but due to material failure. With great accuracy, the results of the comparison show that it is possible to predict the mechanical properties of 3D printed composite laminates on the basis of a theoretical model. View Full-Text
Keywords: composite polymer materials; carbon fibers; hollow profile; 3D printing; fused deposition modeling; FEM analysis; SEM analysis composite polymer materials; carbon fibers; hollow profile; 3D printing; fused deposition modeling; FEM analysis; SEM analysis
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MDPI and ACS Style

Kalova, M.; Rusnakova, S.; Krzikalla, D.; Mesicek, J.; Tomasek, R.; Podeprelova, A.; Rosicky, J.; Pagac, M. 3D Printed Hollow Off-Axis Profiles Based on Carbon Fiber-Reinforced Polymers: Mechanical Testing and Finite Element Method Analysis. Polymers 2021, 13, 2949. https://doi.org/10.3390/polym13172949

AMA Style

Kalova M, Rusnakova S, Krzikalla D, Mesicek J, Tomasek R, Podeprelova A, Rosicky J, Pagac M. 3D Printed Hollow Off-Axis Profiles Based on Carbon Fiber-Reinforced Polymers: Mechanical Testing and Finite Element Method Analysis. Polymers. 2021; 13(17):2949. https://doi.org/10.3390/polym13172949

Chicago/Turabian Style

Kalova, Martina, Sona Rusnakova, David Krzikalla, Jakub Mesicek, Radek Tomasek, Adela Podeprelova, Jiri Rosicky, and Marek Pagac. 2021. "3D Printed Hollow Off-Axis Profiles Based on Carbon Fiber-Reinforced Polymers: Mechanical Testing and Finite Element Method Analysis" Polymers 13, no. 17: 2949. https://doi.org/10.3390/polym13172949

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