基于数字单元法的平纹织物压实形态变化研究  

Study on compacting morphology change of plain fabric based on digital unit method

作　　者：颜丙越 张卓 尹立 何剑飞 YAN Bingyue;ZHANG Zhuo;YIN Li;HE Jianfei(Beijing Smart Energy Research Institute,Beijing 102209,China)

机构地区：[1]北京智慧能源研究院,北京102209

出　　处：《复合材料科学与工程》2025年第2期137-144,共8页Composites Science and Engineering

基　　金：特高压GIS开关设备用芳纶绝缘拉杆关键技术研究项目(5500-202158245A-0-0-00)。

摘　　要：平纹编织复合材料因其强度高、性能稳定、结构简单等优点,被广泛应用于航空航天、汽车、船舶等领域。作为复合材料的增强结构,平纹织物的几何特征对结构性能有重要影响。作为一种柔性结构,平纹织物纱线的几何形状受工艺参数影响易发生明显形变。针对玻璃纤维平纹织物,采用四种压力制备了四种复合材料试样。对四种试样内部纱线结构进行了Micro-CT扫描。使用数字单元法对平纹织物进行了细观尺度建模,并进行四种压力下的压实模拟。将Micro-CT扫描结果与模拟的纱线形态进行对比,验证了模拟方法的正确性,进一步分析了织物在压力载荷下的纱线形态变化过程。Plain woven composites are widely used in aviation,aerospace,automobile,ship and other fields because of their advantages of high strength,stable performance and simple structure.As a reinforced structure of composite materials,the geometric characteristics of plain fabric have an important effect on the structural properties.As a kind of flexible structure,the geometry of plain fabric yarns is easy to deform significantly under the influence of technological parameters.For glass fiber plain fabric,four kinds of composite material samples were prepared by four kinds of pressure.The internal yarn structure of four samples was scanned by micro-CT.In this paper,the digital element method is used to model the meso-scale of plain fabric,and the compacting simulation under four kinds of pressure is carried out.The results of Micro-CT scan were compared with the simulated yarn shape to verify the correctness of the simulation method and further analyze the yarn shape change process under pressure load.

关 键 词：Micro-CT技术 数字单元法 流动压实 纱线形态 复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]