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

Abstract

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

CLC Number:

TB332

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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