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A design method of 3D printed auxetic structures with enhanced mechanical tunability
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Meng ZHANG1, 2, Jiawen XU1, 2, Yanqiu CHEN1, 2, Yu LIU1, 2
Journal of Mechanical Strength | 2025, 47(7) : 101 - 107
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Journal of Mechanical Strength | 2025, 47(7): 101-107
• ·Design·Calculation· •
A design method of 3D printed auxetic structures with enhanced mechanical tunability
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Meng ZHANG1, 2, Jiawen XU1, 2, Yanqiu CHEN1, 2, Yu LIU1, 2
Affiliations
  • 1.School of Mechanical Engineering, Jiangnan University, Wuxi 214122, China
  • 2.Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment & Technology, Wuxi 214122, China
Published: 2025-07-15 doi: 10.16579/j.issn.1001.9669.2025.07.013
Outline
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Auxetic materials have garnered attention due to their novel behavior under deformation and numerous other material properties, such as fracture resistance, shear resistance, and energy absorption. By integrating hyperelastic materials with auxetic structures, the highly deformable capability enables the design of structures with enhanced mechanical tunability.To this end, a design methodology for 3D printed auxetic structures with improved mechanical adjustability was proposed. The in-plane compressive behavior of the designed structures was investigated through test and numerical analyses. The results demonstrate that, compared to conventional auxetic structures, the composite material with auxetics structures exhibits higher stiffness and enhanced energy absorption performance. By further adjusting the distribution and amplitude of sinusoidal ligaments, auxetic structures with tunable energy absorption, Poisson ratio, and deformation modes were generated. This study presents a design approach for improving the mechanical properties and energy absorption of lightweight structures.

Negative Poisson ratio  /  3D printing  /  Auxetic structure  /  Composites  /  Energy absorption
Meng ZHANG, Jiawen XU, Yanqiu CHEN, Yu LIU. A design method of 3D printed auxetic structures with enhanced mechanical tunability[J]. Journal of Mechanical Strength, 2025 , 47 (7) : 101 -107 . DOI: 10.16579/j.issn.1001.9669.2025.07.013
Funding
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  • National Natural Science Foundation of China(51875253)
  • Jiangsu Provincial Key Research and Development Program(BE2022069-2)
Appendix
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Year 2025 volume 47 Issue 7
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Article Info
doi: 10.16579/j.issn.1001.9669.2025.07.013
  • Receive Date：2024-01-04
  • Online Date：2026-03-19
  • Published：2025-07-15
Article Data
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History
  • Received：2024-01-04
  • Revised：2024-02-03
Funding
National Natural Science Foundation of China(51875253)
Jiangsu Provincial Key Research and Development Program(BE2022069-2)
Affiliations
    1.School of Mechanical Engineering, Jiangnan University, Wuxi 214122, China
    2.Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment & Technology, Wuxi 214122, China

Corresponding:

LIU Yu, E-mail：
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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