复合材料K/T型接头真空辅助成型工艺树脂流动研究

玻璃钢/复合材料 ›› 2017, Vol. 0 ›› Issue (9): 97-100.

复合材料K/T型接头真空辅助成型工艺树脂流动研究

赵清华,王长春^*,岳广全,刘建光

中国商飞北京民用飞机技术研究中心,民用飞机结构与复合材料北京市重点实验室,北京102211

收稿日期:2017-04-24 出版日期:2017-09-28 发布日期:2017-09-28
通讯作者: 王长春(1983-),男,博士,工程师,主要从事复合材料制造、工艺仿真以及飞机强度分析等方面的研究,wangchch2007@163.com。
作者简介:赵清华(1983-),男,硕士,工程师,主要从事飞机强度分析等方面的研究。

SIMULATION OF THE RESIN FLOW PROCESS OF THE COMPOSITE K/T TYPED JOINTS USING VACUUM ASSISTED RESIN TRANSFER MOLDING

ZHAO Qing-hua, WANG Chang-chun^*, YUE Guang-quan, LIU Jian-guang

Beijing Key Laboratory of Civil Aircraft Structures and Composite Materials, Beijing Aeronautical Science & Technology Research Institute of COMAC, Beijing 102211, China

Received:2017-04-24 Online:2017-09-28 Published:2017-09-28

摘要/Abstract

摘要： 城市的现代化进程促进了大跨度结构的应用,用于结构间的连接接头需要具有良好的力学、耐疲劳和耐腐蚀性能。先进复合材料以优异的性能成为理想的接头材料,但高昂的制造成本限制了其应用。对基于真空辅助成型(VARTM)工艺制造K/T型接头时的树脂流动过程进行了研究,通过考察四种可能树脂注模方式所需注模时间及流动前锋的信息确定合理的工艺方式;并将模拟结果与相应试验结果对比分析,两者表现出良好的一致性。采用复合材料接头一体化制造模具制造出K/T型接头,并组装了典型复合材料桁架结构。试验结果表明,模拟所得注模方式可实现复合材料K/T型接头的低成本工艺制造,避免了由传统试错法确定注模方式带来的高成本。

关键词: 复合材料, K/T型接头, VARTM工艺, 树脂流动, 数值模拟

Abstract: The large-span structure has obtained a rapid development during the advance of urbanization, which requires pipeline structures with good mechanical properties and corrosion resistance. The conventional pipe part is composing of metal concrete structure, which has the disadvantages in the wet and corrosive cases. The composites have widely regarded as the promising materials in civil engineering design for the high specific strength and corrosion resistance, which has greatly hindered the application in the fields of cost control. In this study, the composite K/T typed joints were obtained using the vacuum assisted resin transfer molding (VARTM) process and the suitable resin injection method was determined based on the simulation results of resin flow front shape and injection time for the four injection methods, which was compared with the testing result with the determined injection method. Both of these results present good agreement with each other, which can avoid the high cost of the trial and error method.

Key words: composite, K/T typed joints, VARTM process, resin flow, simulation

中图分类号:

TB332

赵清华,王长春,岳广全,刘建光. 复合材料K/T型接头真空辅助成型工艺树脂流动研究[J]. 玻璃钢/复合材料, 2017, 0(9): 97-100.

ZHAO Qing-hua, WANG Chang-chun, YUE Guang-quan, LIU Jian-guang. SIMULATION OF THE RESIN FLOW PROCESS OF THE COMPOSITE K/T TYPED JOINTS USING VACUUM ASSISTED RESIN TRANSFER MOLDING[J]. Fiber Reinforced Plastics/Composites, 2017, 0(9): 97-100.

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