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Equivalent
mechanical properties of additively manufactured octagonal
honeycombs: theoretical and experimental analysis
Sen Zhang, Shuheng Wang, Jiaxin Cai, Yongbin Ma and Zichen Deng |
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Vol. 16 (2021), No. 5, 655–675
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DOI: 10.2140/jomms.2021.16.655
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Abstract |
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Equivalent mechanical properties are presented for additively manufactured octagonal honeycomb structures in this paper. Based on classical beam theory, the stiffness matrix of octagonal honeycomb structure is obtained analytically. Based on this, the analytical expressions of elastic modulus, Poisson’s ratio and yield strength of octagonal honeycomb structures are derived. The octagonal honeycomb structures are printed by fused deposition modeling (FDM) technology, and the mechanical properties are obtained by uniaxial quasistatic compression test. In addition, the quasistatic compression finite element model of octagonal honeycomb structure is established. Finally, the comparisons of the theoretical results with the numerical results, the experimental results and the literature results verify the accuracy and effectiveness of the analytical expressions derived in this paper for the mechanical properties of octagonal honeycomb structures. |
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Keywords
octagonal honeycomb, equivalent mechanical properties,
additive manufacturing, stiffness matrix
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Milestones
Received: 28 February 2021
Revised: 25 August 2021
Accepted: 31 August 2021
Published: 31 August 2022
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Authors |
| Sen Zhang | |
| School of Mechanics, Civil
Engineering and Architecture and MIIT Key Laboratory of
Dynamics and Control of Complex Systems Northwestern Polytechnical University 127 West Youyi Road, Xi’an Xi’an, 710072 China |
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| Shuheng Wang | |
| School of Mechanics, Civil
Engineering and Architecture and MIIT Key Laboratory of
Dynamics and Control of Complex Systems Northwestern Polytechnical University 127 West Youyi Road, Xi’an Xi’an, 710072 China |
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| Jiaxin Cai | |
| School of Mechanics, Civil
Engineering and Architecture and MIIT Key Laboratory of
Dynamics and Control of Complex Systems Northwestern Polytechnical University 127 West Youyi Road, Xi’an Xi’an, 710072 China |
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| Yongbin Ma | |
| School of Mechanics, Civil
Engineering and Architecture and MIIT Key Laboratory of
Dynamics and Control of Complex Systems Northwestern Polytechnical University 127 West Youyi Road, Xi’an Xi’an, 710072 China |
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| Zichen Deng | |
| School of Mechanics, Civil
Engineering and Architecture and MIIT Key Laboratory of
Dynamics and Control of Complex Systems Northwestern Polytechnical University 127 West Youyi Road, Xi’an Xi’an, 710072 China |
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