Design and reinforcement-learning optimization of re-entrant cellular metamaterials DOI
Sihao Han, Qiang Han, Nanfang Ma

et al.

Thin-Walled Structures, Journal Year: 2023, Volume and Issue: 191, P. 111071 - 111071

Published: Aug. 12, 2023

Language: Английский

Compressive and tensile behaviours of 3D hybrid auxetic-honeycomb lattice structures DOI Creative Commons

Qifang Hu,

Guoxing Lu, Kwong Ming Tse

et al.

International Journal of Mechanical Sciences, Journal Year: 2023, Volume and Issue: 263, P. 108767 - 108767

Published: Sept. 17, 2023

Lattice structures have the potential for application in tensile conditions. However, limited studies addressed behaviours of such and compared them with their compressive behaviours. In this paper, re-entrant structure as foundation was selected to develop new 3D hybrid auxetic honeycomb lattice structures, each characterized by a unique unit cell configuration that features interconnected centre honeycomb, differentiating it from 2D structures. A series uniaxial quasi-static tests, followed simulations were conducted on these investigate compare energy absorption characteristics. The results show there significant differences between terms mechanical under tension compression. Especially, smallest value load 86% higher than largest load. stiffnesses loading about 84–122 times those identical corresponding when they compressed. Meanwhile, progressive stretching, buckling collapse mechanisms observed exhibited excellent absorptions traditional basic structure. outer frame had direct influence Poisson's ratio. work indicates stiffness can be enhanced embedding umbrella shaped elements.

Language: Английский

Citations

50
In-plane compression characteristics of star-shaped honeycomb with asymmetric cells DOI
Yuwen Chen, Huilan Huang, Xiaolin Deng

et al.

European Journal of Mechanics - A/Solids, Journal Year: 2024, Volume and Issue: 105, P. 105224 - 105224

Published: Jan. 5, 2024

Language: Английский

Citations

35
Design and mechanical properties analysis of hexagonal perforated honeycomb metamaterial DOI Creative Commons
Yinchuan He,

Zefang Bi,

Tingting Wang

et al.

International Journal of Mechanical Sciences, Journal Year: 2024, Volume and Issue: 270, P. 109091 - 109091

Published: Feb. 7, 2024

Hexagonal perforated honeycomb (HPH) metamaterials were designed, fabricated and investigated in this work. Initially, the mechanical properties deformation modes of various proposed HPH (HPH-U, HPH-1L HPH-3L) under quasi-static vertical compression analyzed using experimental finite element methods. The findings reveal significant improvements energy absorption due to hierarchical expandable design. Notably, auxetic effect is diminished. Subsequently, impact key dimensional parameters on Poisson's ratio behavior was explored. results highlighted that an increase elliptical perforation major axis minor enhanced but compromised load-bearing absorptive capacity. Additionally, displayed exceptional performance horizontal compression, with their structure enabling them withstand both impacts while exhibiting excellent capabilities. study also identified relative density as a crucial factor influencing performance. Finally, subjected multiple repetitive compressions, meticulously analyzing variations diverse ratios. Due distinctive structural design impressive properties, demonstrate immense potential for applications automotive engineering sports protection fields.

Language: Английский

Citations

32
Design and compressive behaviors of the gradient re-entrant origami honeycomb metamaterials DOI
Nanfang Ma, Sihao Han, Qiang Han

et al.

Thin-Walled Structures, Journal Year: 2024, Volume and Issue: 198, P. 111652 - 111652

Published: Jan. 30, 2024

Language: Английский

Citations

28
Compressive response and optimization design of a novel hierarchical re-entrant origami honeycomb metastructure DOI
Nanfang Ma, Sihao Han, Wenhao Xu

et al.

Engineering Structures, Journal Year: 2024, Volume and Issue: 306, P. 117819 - 117819

Published: March 7, 2024

Language: Английский

Citations

24
A bistable honeycomb mechanical metamaterial with transformable Poisson's ratio and tunable vibration isolation properties DOI

Bo‐Ya Xiao,

Yu Liu, Wenshuai Xu

et al.

Thin-Walled Structures, Journal Year: 2024, Volume and Issue: 198, P. 111718 - 111718

Published: Feb. 16, 2024

Language: Английский

Citations

19
A novel honeycomb sandwich cylindrical shell with dual deformation mode for circumferential vibration isolation and enhanced stiffness DOI

Hengtai Ni,

Jing Liu,

D. S. Liu

et al.

Mechanical Systems and Signal Processing, Journal Year: 2025, Volume and Issue: 226, P. 112359 - 112359

Published: Jan. 23, 2025

Language: Английский

Citations

6
Hierarchically topological design and mechanical performances of TPMS-based biomimetic cellular structures DOI
Sihao Han, Chunlei Li, Yangfan He

et al.

Materials Today Communications, Journal Year: 2025, Volume and Issue: unknown, P. 111836 - 111836

Published: Feb. 1, 2025

Language: Английский

Citations

3
Auxetic mechanical metamaterials with symmetry-broken Re-entrant units DOI
Amin Montazeri,

Amirhossein Saeedi,

Ehsan Bahmanpour

et al.

International Journal of Mechanical Sciences, Journal Year: 2023, Volume and Issue: 266, P. 108917 - 108917

Published: Dec. 13, 2023

Language: Английский

Citations

36
Non-contact electromagnetic controlled metamaterial beams for low-frequency vibration suppression DOI

Yu Sun,

Haokai Zheng,

Qiang Han

et al.

International Journal of Solids and Structures, Journal Year: 2024, Volume and Issue: 290, P. 112667 - 112667

Published: Jan. 20, 2024

Language: Английский

Citations

17