Research on composite material forming mould compensation and component adaptive adjustment method

doi:10.19936/j.cnki.2096-8000.20231128.007

Abstract

Abstract: The finite element model of composite component should be re-modeled for mould compensation after curing deformation which is with low efficiency, heavy workload and lack of validation. A method of mould surface compensation for composite material molding and component adaptive adjustment was proposed to aim at the problem that the finite element model of compsite component needs to be adjusted after mould surface compensation of composite forming mould. The virtual material model was used to realize the fully fitting of the component mesh and the compensated mould mesh. The typical component was used to verify the correctness of the method, and the experimental results of this method were discussed based on an example of a complex barrel-shaped panel. The results show that: ①The curing deformation of T-stiffened panels and complex barrel-shaped panels can be significantly reduced by mould surface compensation; ②The method proposed in this paper was used to test the curing deformation of T-stiffened panels and the maximum relative error between the measured test deviation and the numerical simulation deviation was 17.20% which meets the engineering acceptance standard; ③The method of composite material forming mould compensation and component adaptive adjustment can avoid the reconstruction operation of component finite element model after mould compensation, improve the compensation efficiency, and improve the accuracy of the results.

Key words: composite molding, mould surface compensation, adaptive adjustment, finite element, numerical simulation analysis

CLC Number:

TB332

BAO Yidong, ZHANG Heng, ZHANG Huijie, HUAN Lei, YANG Zhiyong, ZUO Xiaobiao, AN Luling. Research on composite material forming mould compensation and component adaptive adjustment method[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(11): 49-57.

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