Compressive properties and failure mechanisms of 3D-printed continuous carbon fiber-reinforced auxetic structures

3D printing of continuous carbon fiber-reinforced (CCFR) composites is an innovative and promising fabrication technique that meets the booming demands of lightweight and structural diversity in advanced transportation industries. In the present work, 3D printing of CCFR composites is introduced to...

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Main Authors: Zhang, Xin, Zheng, Xitao, Song, Luyang, Tian, Yuanyuan, Zhang, Di, Yan, Leilei
Other Authors: School of Materials Science and Engineering
Format: Article
Language:English
Published: 2024
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Online Access:https://hdl.handle.net/10356/173457
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1734572024-02-06T07:15:21Z Compressive properties and failure mechanisms of 3D-printed continuous carbon fiber-reinforced auxetic structures Zhang, Xin Zheng, Xitao Song, Luyang Tian, Yuanyuan Zhang, Di Yan, Leilei School of Materials Science and Engineering School of Mechanical and Aerospace Engineering Engineering Continuous Carbon Fiber Failure Mechanism 3D printing of continuous carbon fiber-reinforced (CCFR) composites is an innovative and promising fabrication technique that meets the booming demands of lightweight and structural diversity in advanced transportation industries. In the present work, 3D printing of CCFR composites is introduced to design and fabricate auxetic structures with four Poisson's ratios. The compression characteristics of the 3D-printed CCFR auxetic structures are experimentally investigated under quasi-static loading. The characterization of fracture microstructures and the finite element simulation are carried out to go deeper into the compressive behaviors and failure mechanisms. Moreover, the compressive characteristics of the auxetic structures under diverse Poisson's ratios are analyzed based on the stress-strain curve, energy absorption and failure modes. The results reveal that the transformed configuration significantly affects the compressive properties and deformation behaviors under different Poisson's ratios. The 3D-printed CCFR auxetic structure with Poisson's ratio of -0.531 possesses the preferrable transformed configuration, leading to the highest specific energy absorption (SEA, 2.302 J·g-1). The bend-induced damage evolves from the whitish resin to the complete breakage of fibers, which is the dominant failure mode of 3D-printed CCFR auxetic structures. The research plays a vital guiding role in the structural design and engineering applications of 3D-printed CCFR auxetic structures with desired mechanical properties. The full content of the paper was supported by Fundamental Research Funds for the Central Universities (D5000220029), National Natural Science Foundation of China (11702326) and the State Scholarship Fund of China Scholarship Council (202006290188). 2024-02-05T06:49:25Z 2024-02-05T06:49:25Z 2023 Journal Article Zhang, X., Zheng, X., Song, L., Tian, Y., Zhang, D. & Yan, L. (2023). Compressive properties and failure mechanisms of 3D-printed continuous carbon fiber-reinforced auxetic structures. Composites Communications, 43, 101744-. https://dx.doi.org/10.1016/j.coco.2023.101744 2452-2139 https://hdl.handle.net/10356/173457 10.1016/j.coco.2023.101744 2-s2.0-85173429893 43 101744 en Composites Communications © 2023 Elsevier Ltd. All rights reserved.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering
Continuous Carbon Fiber
Failure Mechanism
spellingShingle Engineering
Continuous Carbon Fiber
Failure Mechanism
Zhang, Xin
Zheng, Xitao
Song, Luyang
Tian, Yuanyuan
Zhang, Di
Yan, Leilei
Compressive properties and failure mechanisms of 3D-printed continuous carbon fiber-reinforced auxetic structures
description 3D printing of continuous carbon fiber-reinforced (CCFR) composites is an innovative and promising fabrication technique that meets the booming demands of lightweight and structural diversity in advanced transportation industries. In the present work, 3D printing of CCFR composites is introduced to design and fabricate auxetic structures with four Poisson's ratios. The compression characteristics of the 3D-printed CCFR auxetic structures are experimentally investigated under quasi-static loading. The characterization of fracture microstructures and the finite element simulation are carried out to go deeper into the compressive behaviors and failure mechanisms. Moreover, the compressive characteristics of the auxetic structures under diverse Poisson's ratios are analyzed based on the stress-strain curve, energy absorption and failure modes. The results reveal that the transformed configuration significantly affects the compressive properties and deformation behaviors under different Poisson's ratios. The 3D-printed CCFR auxetic structure with Poisson's ratio of -0.531 possesses the preferrable transformed configuration, leading to the highest specific energy absorption (SEA, 2.302 J·g-1). The bend-induced damage evolves from the whitish resin to the complete breakage of fibers, which is the dominant failure mode of 3D-printed CCFR auxetic structures. The research plays a vital guiding role in the structural design and engineering applications of 3D-printed CCFR auxetic structures with desired mechanical properties.
author2 School of Materials Science and Engineering
author_facet School of Materials Science and Engineering
Zhang, Xin
Zheng, Xitao
Song, Luyang
Tian, Yuanyuan
Zhang, Di
Yan, Leilei
format Article
author Zhang, Xin
Zheng, Xitao
Song, Luyang
Tian, Yuanyuan
Zhang, Di
Yan, Leilei
author_sort Zhang, Xin
title Compressive properties and failure mechanisms of 3D-printed continuous carbon fiber-reinforced auxetic structures
title_short Compressive properties and failure mechanisms of 3D-printed continuous carbon fiber-reinforced auxetic structures
title_full Compressive properties and failure mechanisms of 3D-printed continuous carbon fiber-reinforced auxetic structures
title_fullStr Compressive properties and failure mechanisms of 3D-printed continuous carbon fiber-reinforced auxetic structures
title_full_unstemmed Compressive properties and failure mechanisms of 3D-printed continuous carbon fiber-reinforced auxetic structures
title_sort compressive properties and failure mechanisms of 3d-printed continuous carbon fiber-reinforced auxetic structures
publishDate 2024
url https://hdl.handle.net/10356/173457
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