金属网复合膜对ZT7H/5429复合材料平板固化变形的影响

复合材料科学与工程 ›› 2020, Vol. 0 ›› Issue (7): 103-109.

金属网复合膜对ZT7H/5429复合材料平板固化变形的影响

张晨乾¹, 李韶亮², 翟全胜¹, 叶宏军¹
本文作者还有苗春卉¹

1.中国航空制造技术研究院复合材料技术中心,北京101300;
2.空军驻北京地区军事代表室,北京100038

收稿日期:2020-04-03 出版日期:2020-07-28 发布日期:2020-07-28
作者简介:张晨乾(1983-),男,博士,高级工程师,主要从事树脂基复合材料成型工艺方面的研究,13552781573@163.com。

EFFECT OF METAL MESH COMPOSITE FILM ON CURING DEFORMATION OF ZT7H/5429 COMPOSITE PLATE

ZHANG Chen-qian¹, LI Shao-liang², ZHAI Quan-sheng¹, YE Hong-jun¹

1. Composite Center of China Academy of Aeronautical Manufacturing Technology, Beijing 101300, China;
2. Air Force Military Representative Office in Beijing Region, Beijing 100038, China

Received:2020-04-03 Online:2020-07-28 Published:2020-07-28

摘要/Abstract

摘要： 通过不同的方法测试5429树脂及ZT7H/5429复合材料固化后的弹性模量、密度、泊松比、热传导系数等材料物性参数,基于5429树脂固化度与化学收缩应变的关系表达式,推导出5429粘流态和粘弹态的密度、弹性模量与固化度的关系表达式。据此建立了包含热传导模型、固化动力学模型、残余应力模型的含金属网复合膜的ZT7H/5429复合材料整个固化过程的三维有限元分析模型。使用该模型对ZT7H/5429固化过程中温度场和固化度的分布进行计算,将计算结果与实验结果进行比较,验证了该三维有限元分析模型的可靠性。在此基础上,对J-403C对ZT7H/5429复合材料平板固化变形的影响进行分析。结果表明,增加铺层厚度、调整铺层顺序能够有效降低金属网复合膜对ZT7H/5429复合材料平板固化变形的影响,实验数据与计算结果的误差不大于5%,再次证明了模型的有效性。

关键词: ZT7H/5429, 复合材料, 固化变形, 金属网复合膜, J-403C

Abstract: In this paper, the physical parameters of 5429 resin and ZT7H/5429 composite after curing, such as modulus of elasticity, density, Poisson′s ratio, coefficient of heat conduction and so on, are determined by different test methods. Based on the relationship between the degree of cure of 5429 resin and chemical shrinkage strain, the expressions of density, modulus of elasticity and degree of cure of 5429 viscosity and viscoelasticity are derived. Based on this, a three-dimensional finite element analysis model of the whole curing process of ZT7H/5429 composite with metal mesh composite film is established, which includes heat conduction model, curing dynamic model and residual stress model. The model is used to calculate the distribution of temperature field and degree of solidification during the curing process of ZT7H/5429. The results of calculation are compared with the experimental results, and the reliability of the three-dimensional finite element analysis model is verified. On this basis, the influence of J-403C on the solidification deformation of ZT7H/5429 composite plate was analyzed. The results show that increasing the thickness of the layer and adjusting the sequence of the layer can effectively reduce the influence of the metal mesh composite film on the curing deformation of ZT7H/5429 composite plate. The error between the experimental data and the calculated results is not more than 5%, which proves the validity of the model again.

Key words: ZT7H/5429, composite, curing deformation, metal mesh composite film, J-403C

中图分类号:

TB332

张晨乾, 李韶亮, 翟全胜, 叶宏军. 金属网复合膜对ZT7H/5429复合材料平板固化变形的影响[J]. 复合材料科学与工程, 2020, 0(7): 103-109.

ZHANG Chen-qian, LI Shao-liang, ZHAI Quan-sheng, YE Hong-jun. EFFECT OF METAL MESH COMPOSITE FILM ON CURING DEFORMATION OF ZT7H/5429 COMPOSITE PLATE[J]. Composites Science and Engineering, 2020, 0(7): 103-109.

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