Bridge-inspired lattice materials with superior strength, toughness, and fatigue resistance
A 3D-printed lattice material (LM) is a typical mechanical metamaterial with high strength, low weight, and considerable potential for application in bone implants, aircraft, and energy storage. Nevertheless, its application is limited owing to the difficulty of balancing high specific strength and...
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| Language: | English |
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Elsevier
2025-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425002340 |
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| author | Heng Zhang Junhua Ke Jingjing Diao Jiaqian Zheng Naru Zhao Yudi Kuang Yingjun Wang |
| author_facet | Heng Zhang Junhua Ke Jingjing Diao Jiaqian Zheng Naru Zhao Yudi Kuang Yingjun Wang |
| author_sort | Heng Zhang |
| collection | DOAJ |
| description | A 3D-printed lattice material (LM) is a typical mechanical metamaterial with high strength, low weight, and considerable potential for application in bone implants, aircraft, and energy storage. Nevertheless, its application is limited owing to the difficulty of balancing high specific strength and toughness or fatigue resistance, which makes designing metamaterials challenging. Inspired by the excellent mechanical performance and service life of Zhaozhou Bridge, an ancient Chinese bridge, a titanium-based LM mimicking the bowstring-like rod-arch (BA) bridge structure is developed and 3D-printed. It demonstrates a compressive strength of 117 MPa at 75% porosity, two and six times higher than that of 3D-printed materials with sheet gyroid and diamond lattice structures. Moreover, it exhibits superior toughness (1271 MJ/m3) and fatigue resistance, enduring over two million cycles of cyclic compression fatigue testing. Finite element analysis and fracture characterization reveal that the excellent mechanical properties of the proposed LMs can be attributed to the BA structure's unique stress-dispersion and dual-level energy-dissipation mechanisms. Proof-of-concept demonstration results indicate that our designed BA-LMs have a great potential application in bone defect repair. |
| format | Article |
| id | doaj-art-f8752d7bb56e4859848565a39899a14a |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-f8752d7bb56e4859848565a39899a14a2025-02-09T05:00:32ZengElsevierJournal of Materials Research and Technology2238-78542025-03-013531613169Bridge-inspired lattice materials with superior strength, toughness, and fatigue resistanceHeng Zhang0Junhua Ke1Jingjing Diao2Jiaqian Zheng3Naru Zhao4Yudi Kuang5Yingjun Wang6School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, PR China; National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR ChinaSchool of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, PR China; National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR ChinaNational Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR China; Medical Devices Research & Testing Center of SCUT, Guangzhou, 510006, PR ChinaSchool of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, PR China; National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR ChinaSchool of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, PR China; National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR China; Corresponding author. School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, PR China.National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR China; Guangdong Institute of Advanced Biomaterials and Medical Devices, Guangzhou, 510535, PR China; Corresponding author. Guangdong Institute of Advanced Biomaterials and Medical Devices, Guangzhou, 510535, PR China.School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, PR China; National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR China; Guangdong Institute of Advanced Biomaterials and Medical Devices, Guangzhou, 510535, PR China; Corresponding author. School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, PR China.A 3D-printed lattice material (LM) is a typical mechanical metamaterial with high strength, low weight, and considerable potential for application in bone implants, aircraft, and energy storage. Nevertheless, its application is limited owing to the difficulty of balancing high specific strength and toughness or fatigue resistance, which makes designing metamaterials challenging. Inspired by the excellent mechanical performance and service life of Zhaozhou Bridge, an ancient Chinese bridge, a titanium-based LM mimicking the bowstring-like rod-arch (BA) bridge structure is developed and 3D-printed. It demonstrates a compressive strength of 117 MPa at 75% porosity, two and six times higher than that of 3D-printed materials with sheet gyroid and diamond lattice structures. Moreover, it exhibits superior toughness (1271 MJ/m3) and fatigue resistance, enduring over two million cycles of cyclic compression fatigue testing. Finite element analysis and fracture characterization reveal that the excellent mechanical properties of the proposed LMs can be attributed to the BA structure's unique stress-dispersion and dual-level energy-dissipation mechanisms. Proof-of-concept demonstration results indicate that our designed BA-LMs have a great potential application in bone defect repair.http://www.sciencedirect.com/science/article/pii/S2238785425002340Bowstring like rods-arch structuresMetamaterialsLattice materialsMechanical propertiesBone repair |
| spellingShingle | Heng Zhang Junhua Ke Jingjing Diao Jiaqian Zheng Naru Zhao Yudi Kuang Yingjun Wang Bridge-inspired lattice materials with superior strength, toughness, and fatigue resistance Journal of Materials Research and Technology Bowstring like rods-arch structures Metamaterials Lattice materials Mechanical properties Bone repair |
| title | Bridge-inspired lattice materials with superior strength, toughness, and fatigue resistance |
| title_full | Bridge-inspired lattice materials with superior strength, toughness, and fatigue resistance |
| title_fullStr | Bridge-inspired lattice materials with superior strength, toughness, and fatigue resistance |
| title_full_unstemmed | Bridge-inspired lattice materials with superior strength, toughness, and fatigue resistance |
| title_short | Bridge-inspired lattice materials with superior strength, toughness, and fatigue resistance |
| title_sort | bridge inspired lattice materials with superior strength toughness and fatigue resistance |
| topic | Bowstring like rods-arch structures Metamaterials Lattice materials Mechanical properties Bone repair |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425002340 |
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