Comparison of process-induced distortion prediction methods of carbon fiber composites

doi:10.19936/j.cnki.2096-8000.20231128.015

Abstract

Abstract: Process-induced distortion (PID) of the carbon fiber composite parts cause assembly difficulties and residual stresses. Hence, it is very necessary to establish an accurate prediction method for PID. In this study, we compared the two most widely used PID simulation methods: The semi-empirical model and the CHILE model, and validated them through the autoclave process experiment. Experimental results suggest that the two models can accurately predict the PID behavior of composite plates with the errors less than 10%. Based on the CHILE model, the influence of material parameters on PID was studied. The results suggest that the transverse coefficient of thermal expansion had a significant influence on the PID, then, the transvers coefficient of curing shrinkage also had an important influence on the PID.

Key words: composites, process-induced distortions, finite element method, semi-empirical simplified model, CHILE model

CLC Number:

TB332

LUO Ling, ZHANG Tao, TIAN Zhili, LIU Leibo, XIA Yanan, LI Zhuoda, WEI Hongfeng. Comparison of process-induced distortion prediction methods of carbon fiber composites[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(11): 108-115.

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