Results 1 to 10 of about 8,884,430 (245)

Elastic analysis of auxetic cellular structure consisting of re-entrant hexagonal cells using a strain-based expansion homogenization method

Materials & Design, 2018
In this paper, an auxetic cellular structure consisting of re-entrant hexagonal cells have been analyzed, exhibiting different elastic properties in two orthogonal directions.
Tao Wang, Liangmo Wang, Zhengdong Ma, Gregory M. Hulbert   +3 more
doaj   +3 more sources

Improving energy absorption capability of the hexagonal honeycomb and re-entrant structures using a combined hierarchical design [PDF]

Scientific Reports
Hexagonal honeycombs and re-entrant lattices have been widely used in energy-absorption applications. The hexagonal honeycomb structure, known for its positive Poisson’s ratio and high specific stiffness and strength, has long been considered an ...
Mohammad Mahdi Ashrafian, Rezgar Hasanzadeh   +1 more
doaj   +2 more sources

Comprehensive study of the influence of reinforcements on the deformation mechanism and energy absorption performance of auxetic structure [PDF]

Scientific Reports
The increasing speed of transportation requires outstanding performance of energy absorbers used in passive safety systems. These absorbers must deform at approximately constant force to safely dissipate kinetic energy during a collision.
Vítězslav Sobol, Ondřej Červinek, Jan Jaroš, Melanie Todt, Jakub Hurník, Daniel Koutný   +5 more
doaj   +2 more sources

The Negative Poisson’s Ratio Ship Base Design and Vibration Isolation Performance Analysis

Applied Sciences, 2021
This paper mainly studies the vibration isolation of negative Poisson’s ratio structure in the honeycomb base of ships. Based on the structure of the negative Poisson’s ratio structure, different laying methods and different cell structure are used to ...
Kun Pan, Jieyu Ding, Wei Zhang, Shengdong Zhao   +3 more
doaj   +1 more source

Study of mechanical properties and enhancing auxetic mechanism of composite auxetic structures

Engineering Reports, 2021
The auxetic structures attract much attention because of their good properties, such as enhanced energy absorption capacity and buckling resistance. It is an important topic to combine the auxetic structures with other materials or structures to improve ...
Zengqin Shi, Qing Wang, Yunfeng Li, Ning Wang, Lulu Lei, Xiaodong Li   +5 more
doaj   +1 more source

In-plane and out-of-plane quasi-static compression performance enhancement of 3D printed re-entrant diamond auxetic metamaterial with geometrical tuning and fiber reinforcement

Defence Technology, 2023
Auxetic materials are cellular materials with a unique property of negative Poisson's ratio. The auxeticity and performance of these metamaterials utterly depend on the geometrical parameters and loading direction.
Niranjan Chikkanna, Shankar Krishnapillai, Velmurugan Ramachandran   +2 more
doaj   +1 more source

Advanced Design and Fabrication of Dual-Material Honeycombs for Improved Stiffness and Resilience

Micromachines, 2023
Auxetic re-entrant honeycomb (AREH) structures, consisting of a single soft or tough material, have long faced the challenge of balancing stiffness and rebound resilience.
Jiajing Dong, Songtao Ying, Zhuohao Qiu, Xixi Bao, Chengyi Chu, Hao Chen, Jianjun Guo, Aihua Sun   +7 more
doaj   +1 more source

Topological study about failure behavior and energy absorption of honeycomb structures under various strain rates

Defence Technology, 2023
High-speed impact threats and terrorist actions on the battlefield require the development of more effective protective materials and structures, and various protective structure is designed according their energy-absorbing characteristics.
Yu-chen Wei, Meng-jie Tian, Chun-yang Huang, Shao-wu Wang, Xing Li, Qian-ran Hu, Meng-qi Yuan   +6 more
doaj   +1 more source

DYNAMIC CHARACTERISTICS STUDY OF RE-ENTRANT HONEYCOMB AUXETIC STRUCTURE FOR AL6082 [PDF]

Journal of the Egyptian Society of Tribology, 2020
The Auxetic structures were developed to be used in various applications. Regarding the wide spreading of these structures, different research has been developed to study the different static and dynamic characteristics. This paper presents the numerical
Elsamanty M., Mostafa A., Ibrahim A.
doaj   +1 more source

Novel self-similar re-entrant auxetic metamaterials (SREAM): Design, mechanical property, and geometric optimization

Polymer Testing, 2023
In this study, a novel self-similar re-entrant auxetic metamaterial (SREAM) was designed to improve its mechanical performance compared with the conventional re-entrant structure (CRS).
Peng Dong, Runsheng Hou, Jiayi Hu, Chen Lin, Yuqing Liu, Lei Qin   +5 more
doaj   +1 more source