玻璃纤维-钢丝网增强复合材料拉伸性能研究  

Study on Tensile Properties of Glass Fiber-Wire Mesh Reinforced Composites

作　　者：娄佳俊 沈昭 陈一达 林方俊 刘翠龙 吴晔[1] LOU Jia-jun;SHEN Zhao;CHEN Yi-da;LIN Fang-jun;LIU Cui-long;WU Ye(School of Civil and Architectural Engineering,Nanchang Engineering College,Nanchang 330099,Jiangxi,China)

机构地区：[1]南昌工程学院土木与建筑工程学院,江西南昌330099

出　　处：《合成纤维》2025年第1期47-51,共5页Synthetic Fiber in China

基　　金：江西省研究生教育创新计划项目(YC2023-S997);江西省教育厅科学技术研究项目(GJJ2201503、GJJ211910、GJJ201907)。

摘　　要：采用真空辅助树脂灌注成型(VARI)工艺,双向编织玻璃纤维和矩形不锈钢钢丝网制备了10种不同丝径和孔间距的复合材料试件。研究了不同钢丝网参数对复合材料拉伸性能的影响,并结合数字图像相关技术揭示了其失效机制。研究结果表明,材料的变形在拉伸初始阶段受到钢丝网的约束,随着荷载的增加,试件被钢丝网分割为更多的应变单元,最后钢丝网和纤维发生相对滑移,一侧纤维发生断裂并向另一侧迅速撕裂开从而导致试件破坏,试件的失效全部为脆性失效。引入钢丝网显著提高了玻璃纤维-钢丝网增强复合材料的刚度、峰值荷载和极限应变等参数,相较于无钢丝网试件,极限荷载最大提升了61.18%,最大位移提升了37.17%;此外钢丝网在试件内表现出了良好的延性。研究结果为复合材料加固的工程应用提供了一定的参考。10 kinds of composite material specimens with different wire diameters and hole spacing were prepared by bidirectional braided glass fiber and rectangular stainless steel wire mesh by vacuum assisted resin injection molding(VARI)process.The effects of different wire mesh parameters on the tensile proper⁃ties of the composites were studied,and the failure mechanism was revealed by digital image correlation technique.The results show that the deformation of the material is constrained by the steel wire mesh at the initial stage of tension.With the increase of load,the specimen is divided into more strain units by the steel wire mesh.Finally,the relative slip of the steel wire mesh and the fiber occurs,and the fiber breaks on one side and tears rapidly to the other side,resulting in the failure of the specimen.The introduction of wire mesh significantly improves the stiffness,peak load and ultimate strain of glass fiber-wire mesh reinforced composites.Compared with the specimens without wire mesh,the maximum limit load increases by 61.18%and the maximum displacement increases by 37.17%.In addition,the wire mesh shows good ductility in the specimens.

关 键 词：玻璃纤维-钢丝网增强复合材料 拉伸性能 丝径 孔间距 数字图像相关技术 

分 类 号：TQ343.1[化学工程—化纤工业] TB333[一般工业技术—材料科学与工程]