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Study on elastic properties of re-entrant regular tetrahedral cell of novel negative poisson ratio materials
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Yule LIU1, Xianpu DENG1, Yanhui QIE1, 2, Baowang BAN3
Journal of Mechanical Strength | 2025, 47(6) : 152 - 158
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Journal of Mechanical Strength | 2025, 47(6): 152-158
• Experimental Research·Testing Technology •
Study on elastic properties of re-entrant regular tetrahedral cell of novel negative poisson ratio materials
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Yule LIU1, Xianpu DENG1, Yanhui QIE1, 2, Baowang BAN3
Affiliations
  • 1.School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China
  • 2.Advanced Equipment Research Institute Co., Ltd. of HEBUT of Tianjin, Tianjin 300401, China
  • 3.Tang Steel International Engineering Technology Co., Ltd., Tangshan 063000, China
Published: 2025-06-15 doi: 10.16579/j.issn.1001.9669.2025.06.018
Outline
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In order to improve the mechanical properties of three-dimensional negative Poisson ratio materials, and expand the application of negative Poisson ratio materials. A new unit cell of negative Poisson ratio structural material was proposed by introducing internal concave angles into the edges of tetrahedral porous structures, and 7 kinds of orthogonal isotropic and orthogonal anisotropic enhancement designs were carried out on it. The influence of cell geometry parameters on the dimension one equivalent elastic modulus and Poisson ratio of new and enhanced cells was studied by using the homogenized finite element method and periodic boundary conditions，and the 3D printed resin sample was used for experimental verification. Compared with the existing negative Poisson ratio unit cells, the novel unit cell can save 50% of materials while maintaining the negative Poisson ratio characteristics. The three reinforcement schemes in x-direction, y-direction and xy-direction can significantly improve the bearing-load capacity while improving the negative Poisson ratio characteristics.

Negative Poisson ratio  /  Space cell  /  Finite element simulation  /  Mechanical property
Yule LIU, Xianpu DENG, Yanhui QIE, Baowang BAN. Study on elastic properties of re-entrant regular tetrahedral cell of novel negative poisson ratio materials[J]. Journal of Mechanical Strength, 2025 , 47 (6) : 152 -158 . DOI: 10.16579/j.issn.1001.9669.2025.06.018
Funding
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  • Hebei Administration for Market Regulation Project(2018ZD13; 2020ZC26)
  • Hebei Special Equipment Supervision and Inspection Institute Science and Technology Plan(HBTJ2023CY001; HBTJ2023CY003; HBTJ2023CY004)
Appendix
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Year 2025 volume 47 Issue 6
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65
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Article Info
doi: 10.16579/j.issn.1001.9669.2025.06.018
  • Receive Date：2023-09-26
  • Online Date：2026-03-18
  • Published：2025-06-15
Article Data
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History
  • Received：2023-09-26
  • Revised：2023-12-20
Funding
Hebei Administration for Market Regulation Project(2018ZD13; 2020ZC26)
Hebei Special Equipment Supervision and Inspection Institute Science and Technology Plan(HBTJ2023CY001; HBTJ2023CY003; HBTJ2023CY004)
Affiliations
    1.School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China
    2.Advanced Equipment Research Institute Co., Ltd. of HEBUT of Tianjin, Tianjin 300401, China
    3.Tang Steel International Engineering Technology Co., Ltd., Tangshan 063000, China

Corresponding:

QIE Yanhui, E-mail：
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Citations
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
species (%)
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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