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Enhancing bending performance in 3D woven spacer composites with lightweight biomimetic integrated double-spacer structure
Polymer Composites ( IF 4.8 ) Pub Date : 2023-12-31 , DOI: 10.1002/pc.28095 Chunbing Yang 1 , Zhenqian Lu 2 , Long Chen 1 , Liangang Zheng 1 , Bangze Zhou 1 , Xiaori Yang 1 , Ruijie Wang 1 , Chunxia Wang 2 , Fujun Xu 1, 3
Polymer Composites ( IF 4.8 ) Pub Date : 2023-12-31 , DOI: 10.1002/pc.28095 Chunbing Yang 1 , Zhenqian Lu 2 , Long Chen 1 , Liangang Zheng 1 , Bangze Zhou 1 , Xiaori Yang 1 , Ruijie Wang 1 , Chunxia Wang 2 , Fujun Xu 1, 3
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Three-dimensional woven spacer composites (3DWSCs) with lightweight and excellent mechanical properties have promising application in communication, transportation, aerospace and other fields. However, traditional single-layer 3DWSCs exhibit insufficient strength, especially when dealing with high thickness, as the pile yarns tend to buckle. In this study, inspired by the structural features of the Thalia dealbata, 3D woven integrated double-layer glass fiber/epoxy resin spacer composites by mimicking were fabricated. Innovative integrated double-layer structure design effectively improves the performance and failure mode of 3DWSCs under bending loads. Compared to single-layer 3DWSCs, the resulting double-layer 3DWSCs exhibited a 41.79% increase in peak bending load, a 46.85% increase in bending stiffness, and a 99.38% increase in energy absorption. In addition, the double-layer 3DWSCs showed a low density of 0.52–0.55 g/cm3. This work introduces bioinspired double-layer 3DWSCs with characteristics of lightweight and superior bending performance, potentially offering novel ideas for the design of high-performance composites.
中文翻译：
利用轻质仿生集成双垫片结构增强 3D 编织垫片复合材料的弯曲性能
三维编织间隔复合材料（3DWSC）具有轻质和优异的机械性能，在通信、交通、航空航天等领域具有广阔的应用前景。然而，传统的单层 3DWSC 表现出强度不足，特别是在处理高厚度时，因为绒头纱线容易弯曲。在这项研究中，受Thalia dealbata结构特征的启发，通过模仿制造了3D编织集成双层玻璃纤维/环氧树脂间隔复合材料。创新的集成双层结构设计有效改善了3DWSC在弯曲载荷下的性能和失效模式。与单层3DWSC相比，双层3DWSC的峰值弯曲载荷增加了41.79%，弯曲刚度增加了46.85%，能量吸收增加了99.38%。此外，双层3DWSC的密度较低，为0.52-0.55 g/cm 3。这项工作引入了仿生双层3DWSC，具有轻质和优越的弯曲性能的特点，可能为高性能复合材料的设计提供新的思路。
更新日期：2023-12-31
中文翻译：
利用轻质仿生集成双垫片结构增强 3D 编织垫片复合材料的弯曲性能
三维编织间隔复合材料（3DWSC）具有轻质和优异的机械性能，在通信、交通、航空航天等领域具有广阔的应用前景。然而，传统的单层 3DWSC 表现出强度不足，特别是在处理高厚度时，因为绒头纱线容易弯曲。在这项研究中，受Thalia dealbata结构特征的启发，通过模仿制造了3D编织集成双层玻璃纤维/环氧树脂间隔复合材料。创新的集成双层结构设计有效改善了3DWSC在弯曲载荷下的性能和失效模式。与单层3DWSC相比，双层3DWSC的峰值弯曲载荷增加了41.79%，弯曲刚度增加了46.85%，能量吸收增加了99.38%。此外，双层3DWSC的密度较低，为0.52-0.55 g/cm 3。这项工作引入了仿生双层3DWSC，具有轻质和优越的弯曲性能的特点，可能为高性能复合材料的设计提供新的思路。
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