Study of the bending properties of variable stiffness chain mail fabrics
Study of the bending properties of variable stiffness chain mail fabrics
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DOI：
10.1016/j.compstruct.2023.117369
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发表时间：
2023-10
影响因子：
6.3
通讯作者：
Jiawen Xu;Lijun Chang;Taiwei Chen;Tong Ren;Yan Zhang;Z. Cai
中科院分区：
文献类型：
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作者：
Jiawen Xu;Lijun Chang;Taiwei Chen;Tong Ren;Yan Zhang;Z. Cai
本研究旨在探索一种具有快速、可逆、可控刚度调节的锁子甲织物。结构化织物由三维单细胞颗粒组成。锁子甲面料首次使用聚酰胺12材料通过3D打印技术打印。通过三点弯曲试验研究了织物在不同外压下的力学性能，并建立了有限元模型。最后，研究了压力和颗粒结构对链甲织物的表观弯曲模量、能量吸收和峰值载荷的影响，以揭示链甲织物的机械增强机理。结果表明，在0 ~ 60 kPa压力范围内，链甲织物的表观弯曲模量随压力的增加而增加，最高可达原始值的20倍以上，吸能和强力分别增加了22倍和19倍，为开发弯曲模量可调的结构织物提供了新途径，为开发轻质、坚固和适应性强的结构。
This study aims to explore a chain mail fabric with fast, reversible, and controllable stiffness adjustment. The structured fabric consists of three-dimensional single-cell particles. The chain mail fabric was first printed by 3D printing technology using polyamide 12 material. A three-point bending test was then carried out to investigate the mechanical tunability of the fabric under different external pressures and to establish a finite element model. Finally, the effects of pressure and particle structure on the apparent bending modulus, energy absorption, and peak load of chain mail fabrics are investigated to reveal the mechanical strengthening mechanism of chain mail fabrics. The results show that the apparent bending modulus of the chain mail fabric increases up to more than 20 times its original value as the pressure increases from 0 to 60 kPa, and the energy absorption and strength increase up to 22 and 19 times, respectively, providing a new approach to developing structural fabrics with adjustable bending modulus and new ideas for the development of lightweight, robust and adaptable structures.