VARTM工艺厚铺层增强体压缩特性研究  

Study on compression and permeability characteristics of thick layer-up reinforcements under VARTM process

作　　者：李哲[1,2] 李炜 LI Zhe;LI Wei(Shanghai Collaborative Innovation Center for High Performance Fiber Composites,Donghua University,Shanghai 201620,China;College of Textiles,Donghua University,Shanghai 201620,China;Engineering Research Center of Technical Textile,Ministry Education,Shanghai 201620,China)

机构地区：[1]东华大学上海高性能纤维复合材料协同创新中心,上海201620 [2]东华大学纺织学院,上海201620 [3]产业用纺织品教育部工程研究中心,上海201620

出　　处：《复合材料科学与工程》2022年第11期102-106,119,共6页Composites Science and Engineering

摘　　要：研究了厚铺层织物在VARTM工艺条件下的压缩特性,采用径向法测试了不同铺层数织物渗透率,分析研究了测试过程中织物厚度的变化规律。实验结果表明:厚铺层织物的渗透率受织物厚度影响较大,随织物铺层厚度增加,织物各个方向渗透率均发生下降;采用VARTM工艺制作厚铺层复合材料,织物厚度随着工艺进程发生变化,在真空过程中织物厚度主要受织物层间间隙和纤维孔隙影响,在灌注过程中铺层织物厚度受纤维状态影响。研究结果可为大型厚铺层复合材料精细化制造提供参考。In order to study the permeability and compression characteristics of thick layer-up fabrics, the fabrics with different plies were measured by radical permeability and unidirectional permeability teat method. The change of fabric thickness during radical permeability test was used to analyze the compression characteristics of thick layer-up fabric. The results indicate that the permeability of thick layer-up fabric is greatly affected by the thickness of fabric. As the thickness of the fabric layer increases, the permeability of the fabric in all directions decreases;when the VARTM is used to make thick layer-up composite, the thickness of fabric changes with the process. The thickness of the fabric is mainly affected by the gaps between the layers and fiber pores during the vacuum. The thickness of layer-up fabric is affected by the fiber state during the infusion. The research results provide references for the refined manufacturing of large-scale thick layer-up composite.

关 键 词：VARTM 厚铺层织物 渗透率 压缩特性 

分 类 号：TB332[一般工业技术—材料科学与工程]