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Investigation of the equivalent mechanical properties of the bone-inspired composite cellular structure: Analytical, numerical and experimental approaches

Ghorbani, Fatemeh; Gharehbaghi, Hussain; Farrokhabadi, Amin; Bolouri, Amir

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Authors

Fatemeh Ghorbani

Hussain Gharehbaghi

Amin Farrokhabadi

Amir Bolouri Amir.Bolouri@uwe.ac.uk
Associate Professor in Manufacturing



Abstract

This study investigated the development of an analytical model using the energy method and Castigliano's second theory to evaluate the equivalent mechanical properties for a bone-inspired cellular structure of a glass fiber-reinforced Polylactic Acid (PLA) composite material. The bone-inspired cellular structure was fabricated using a Fused Deposition Modeling (FDM) 3D printing technique. The fabricated specimens were subjected to compression testing. The digital image correlation technique was employed for obtaining stain and displacement contours in experimental tests. Furthermore, a finite element numerical model was developed to evaluate the mechanical properties of the bone-inspired composite cellular structure. The comparison of the experimental and numerical results with the outcomes of analytical model revealed that the proposed analytical model can correctly determine the mechanical properties of the composite bio-inspired cellular structure. The results showed that by reinforcing the cellular structure with continuous fiber, significantly higher mechanical properties can be obtained. A comprehensive parametric study has also been performed to investigate the effect of geometric parameters on equivalent mechanical properties.

Journal Article Type Article
Acceptance Date Jan 17, 2023
Online Publication Date Jan 21, 2023
Publication Date Apr 1, 2023
Deposit Date Jan 23, 2023
Publicly Available Date Jan 22, 2025
Journal Composite Structures
Print ISSN 0263-8223
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 309
Pages 116720
DOI https://doi.org/10.1016/j.compstruct.2023.116720
Keywords Civil and Structural Engineering; Ceramics and Composites; Digital Image Correlation (DIC), Fiber reinforced cellular structure, Classical lamination theory (CLT), energy method
Public URL https://uwe-repository.worktribe.com/output/10374456
Publisher URL https://www.sciencedirect.com/science/article/pii/S0263822323000648?via%3Dihub

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Investigation of the equivalent mechanical properties of the bone-inspired composite cellular structure: Analytical, numerical and experimental approaches (2.1 Mb)
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Licence
http://creativecommons.org/licenses/by-nc-nd/4.0/

Publisher Licence URL
http://creativecommons.org/licenses/by-nc-nd/4.0/

Copyright Statement
This is the author’s accepted manuscript of the article 'Ghorbani, F., Gharehbaghi, H., Farrokhabadi, A., & Bolouri, A. (2023). Investigation of the equivalent mechanical properties of the bone-inspired composite cellular structure: Analytical, numerical and experimental approaches. Composite Structures, 309, 116720. https://doi.org/10.1016/j.compstruct.2023.116720.'

https://doi.org/10.1016/j.compstruct.2023.116720. The final published version is available here: https://www.sciencedirect.com/science/article/pii/S0263822323000648?via%3Dihub

© 2023 Elsevier Ltd. All rights reserved.





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