Open AccessSimulation analysis of deformation spring-back of free-form surface composite with cellular foam filling
Author(s) -
Xishuang Jing,
Xin Xie,
Zhengsheng Chen,
Dongxiang Qian,
Jie Zhang,
Chengyang Zhang,
Siyu Chen,
Guihua Zhang
Publication year - 2021
Publication title -
materials research express
Language(s) - English
Resource type - Journals
ISSN - 2053-1591
DOI - 10.1088/2053-1591/ac0518
Subject(s) - materials science , finite element method , curing (chemistry) , composite number , composite material , shrinkage , image warping , deformation (meteorology) , forming processes , structural engineering , computer science , engineering , artificial intelligence
Due to the complex thermo-chemical-mechanical coupling during the curing and forming process of composite materials, spring-back is commonly observed after forming, which makes the shape of parts after curing and forming deviate from the design shape, resulting in difficult or even impossible assembly. In order to reduce the influence of the spring-back deformation on the forming, the finite element analysis software was used to analyze the curing deformation of the free-form composite part with foam filling, and the numerical simulation and analysis of the curing deformation of the complex curved parts were realized. The simulation analysis involves warping deformation under different angles and radii, which breaks through the unitary shape of previous research objects. In addition, the effect of foam on skin is also considered in the simulation process, and it is found that the shrinkage of the foam will affect the spring-back deformation of parts. Through finite element software, the spring-back simulation of multi-surface composite material after curing was carried out, and the results were compared with those obtained by digital measurement, the comparative analysis shows the effectiveness of the curing deformation prediction model in this paper.