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3D printed tubular lattice metamaterials with engineered mechanical performance
Applied Physics Letters ( IF 4 ) Pub Date : 2020-07-06 , DOI: 10.1063/5.0014932 Huan Jiang 1 , Zhennan Zhang 1 , Yanyu Chen 1
Applied Physics Letters ( IF 4 ) Pub Date : 2020-07-06 , DOI: 10.1063/5.0014932 Huan Jiang 1 , Zhennan Zhang 1 , Yanyu Chen 1
Affiliation
We numerically and experimentally report 3D tubular lattice metamaterials with sinusoidal ligaments, which enable the deformation pattern to switch from bending to stretching. A non-linear J-shape stress-strain response and auxetic behavior over a large deformation range are observed due to the intrinsic deformation mechanism. Numerical analyses further demonstrate that the proposed tubular lattice metamaterials exhibit a high degree of tunability for Poisson's ratio and mechanical responses. In particular, the design flexibility can be harnessed to create heterogeneous tubular structures that can morph into target shapes. The findings presented here provide insights to develop 3D architected metamaterials with various potential applications, such as tissue engineering, biomedical devices, and stretchable electronics.
中文翻译:
具有工程机械性能的 3D 打印管状晶格超材料
我们通过数值和实验报告了具有正弦韧带的 3D 管状晶格超材料,这使变形模式能够从弯曲转换为拉伸。由于固有变形机制,在大变形范围内观察到非线性 J 形应力应变响应和拉胀行为。数值分析进一步表明,所提出的管状晶格超材料对泊松比和机械响应表现出高度的可调性。特别是,可以利用设计灵活性来创建可以变形为目标形状的异质管状结构。此处介绍的研究结果为开发具有各种潜在应用的 3D 架构超材料提供了见解,例如组织工程、生物医学设备和可拉伸电子设备。
更新日期:2020-07-06
中文翻译:
具有工程机械性能的 3D 打印管状晶格超材料
我们通过数值和实验报告了具有正弦韧带的 3D 管状晶格超材料,这使变形模式能够从弯曲转换为拉伸。由于固有变形机制,在大变形范围内观察到非线性 J 形应力应变响应和拉胀行为。数值分析进一步表明,所提出的管状晶格超材料对泊松比和机械响应表现出高度的可调性。特别是,可以利用设计灵活性来创建可以变形为目标形状的异质管状结构。此处介绍的研究结果为开发具有各种潜在应用的 3D 架构超材料提供了见解,例如组织工程、生物医学设备和可拉伸电子设备。