Design and strengthening of dual bio-inspired lattice structures based on additive manufacturing
Lattice structures are widely studied and applied due to their excellent energy absorption capabilities. This study drew inspiration from natural structures and started from the structural form. By utilizing dual bio-inspired characteristics from turtle shell support and honeycomb structure, a novel...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Alexandria Engineering Journal |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1110016824015588 |
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| author | Tongyuan Sun Bingzhi Chen Deyu Yue Dongming Li |
| author_facet | Tongyuan Sun Bingzhi Chen Deyu Yue Dongming Li |
| author_sort | Tongyuan Sun |
| collection | DOAJ |
| description | Lattice structures are widely studied and applied due to their excellent energy absorption capabilities. This study drew inspiration from natural structures and started from the structural form. By utilizing dual bio-inspired characteristics from turtle shell support and honeycomb structure, a novel honeycomb hyperbolic bio-inspired strut (HHBS) structure was designed. Five fractal configurations were created by varying the strut angle, and their energy absorption capabilities and deformation modes were analyzed through numerical simulation and quasi-static compression experiment. The analysis results indicated that the 150°HHBS structure performed best. Based on this finding, the 150°HHBS structure was further strengthened by modifying part of the circular column struts into oblate column struts, enabling adjacent single cells within the lattice structure to form multi-cell structures through shared struts. This improvement minimized the increase in mass, resulting in a new honeycomb hyperbolic bio-inspired strut optimization (HHBSO) structure. The study results demonstrated that the HHBSO structure further improved the energy absorption capability of bio-inspired lattice structures. With the application and advancement of additive manufacturing technology, the manufacturing of dual bio-inspired lattice structures with high mechanical efficiency and lightweight characteristics is possible, which has significant implications for the research and development of energy absorption structures. |
| format | Article |
| id | doaj-art-b28f785911bc45f9910147a50dd4339b |
| institution | Kabale University |
| issn | 1110-0168 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Alexandria Engineering Journal |
| spelling | doaj-art-b28f785911bc45f9910147a50dd4339b2025-02-07T04:47:12ZengElsevierAlexandria Engineering Journal1110-01682025-02-01113573583Design and strengthening of dual bio-inspired lattice structures based on additive manufacturingTongyuan Sun0Bingzhi Chen1Deyu Yue2Dongming Li3Key Laboratory of Railway Industry on Safety Service Key Technologies for High-speed Train, Dalian Jiaotong University, Dalian 116028, China; Zhan Tianyou Honors College, Dalian Jiaotong University, Dalian 116028, ChinaKey Laboratory of Railway Industry on Safety Service Key Technologies for High-speed Train, Dalian Jiaotong University, Dalian 116028, China; Zhan Tianyou Honors College, Dalian Jiaotong University, Dalian 116028, ChinaSchool of Mechanical Engineering, Dalian Jiaotong University, Dalian 116028, ChinaKey Laboratory of Railway Industry on Safety Service Key Technologies for High-speed Train, Dalian Jiaotong University, Dalian 116028, China; Zhan Tianyou Honors College, Dalian Jiaotong University, Dalian 116028, China; Correspondence to: Dalian Jiaotong University, Dalian 116028, China.Lattice structures are widely studied and applied due to their excellent energy absorption capabilities. This study drew inspiration from natural structures and started from the structural form. By utilizing dual bio-inspired characteristics from turtle shell support and honeycomb structure, a novel honeycomb hyperbolic bio-inspired strut (HHBS) structure was designed. Five fractal configurations were created by varying the strut angle, and their energy absorption capabilities and deformation modes were analyzed through numerical simulation and quasi-static compression experiment. The analysis results indicated that the 150°HHBS structure performed best. Based on this finding, the 150°HHBS structure was further strengthened by modifying part of the circular column struts into oblate column struts, enabling adjacent single cells within the lattice structure to form multi-cell structures through shared struts. This improvement minimized the increase in mass, resulting in a new honeycomb hyperbolic bio-inspired strut optimization (HHBSO) structure. The study results demonstrated that the HHBSO structure further improved the energy absorption capability of bio-inspired lattice structures. With the application and advancement of additive manufacturing technology, the manufacturing of dual bio-inspired lattice structures with high mechanical efficiency and lightweight characteristics is possible, which has significant implications for the research and development of energy absorption structures.http://www.sciencedirect.com/science/article/pii/S1110016824015588Bio-inspired designLattice structureEnergy absorptionLaser powder bed fusionStructure strengthening |
| spellingShingle | Tongyuan Sun Bingzhi Chen Deyu Yue Dongming Li Design and strengthening of dual bio-inspired lattice structures based on additive manufacturing Alexandria Engineering Journal Bio-inspired design Lattice structure Energy absorption Laser powder bed fusion Structure strengthening |
| title | Design and strengthening of dual bio-inspired lattice structures based on additive manufacturing |
| title_full | Design and strengthening of dual bio-inspired lattice structures based on additive manufacturing |
| title_fullStr | Design and strengthening of dual bio-inspired lattice structures based on additive manufacturing |
| title_full_unstemmed | Design and strengthening of dual bio-inspired lattice structures based on additive manufacturing |
| title_short | Design and strengthening of dual bio-inspired lattice structures based on additive manufacturing |
| title_sort | design and strengthening of dual bio inspired lattice structures based on additive manufacturing |
| topic | Bio-inspired design Lattice structure Energy absorption Laser powder bed fusion Structure strengthening |
| url | http://www.sciencedirect.com/science/article/pii/S1110016824015588 |
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