Xu Jiazhong, Gu Yunfei, Fu Tianyu, Zhang Xiaobing, Zhang Hao
Key Laboratory of Advanced Manufacturing and Intelligent Technology Ministry of Education, School of Automation, Harbin University of Science and Technology, Harbin 150080, China.
Key Laboratory of Advanced Manufacturing and Intelligent Technology Ministry of Education, School of Mechanical and Power Engineering, Harbin University of Science and Technology, Harbin 150080, China.
Polymers (Basel). 2023 Jul 14;15(14):3039. doi: 10.3390/polym15143039.
Based on the electromagnetic induction heating method, heating and curing of Carbon Fiber Reinforced Polymer (CFRP) have the advantages of high energy utilization and no pollution. However, in the heating process, both the material weaving structure and mold material can affect the temperature field. Therefore, in this study, an electromagnetic heating finite element analysis model for CFRP circular tubes was established based on the equivalent electromagnetic thermal characteristics of CFRP. The study investigated the temperature rise mechanism of the material weaving structure under the magnetic field, and explored in-depth the influence of molds made of 45# steel and glass fiber-reinforced plastic (FRP) on the heating process of CFRP. The CFRP circular tubes with weaving structures of 89-degree winding angle, 45-degree winding angle, and plain weave were studied. The study found that when the metal mold was heated, the CFRP structure had almost no effect on the temperature distribution. However, when the glass fiber-reinforced plastic mold was heated, the temperature field changed with the CFRP structure, and the more fiber cross points, the more uniform the temperature field. The accuracy of the finite element model was verified through experiments. The aim of this research is to provide theoretical guidance for actual industrial production.
基于电磁感应加热方法，碳纤维增强聚合物（CFRP）的加热固化具有能量利用率高和无污染的优点。然而，在加热过程中，材料的编织结构和模具材料都会影响温度场。因此，本研究基于CFRP的等效电磁热特性，建立了CFRP圆管的电磁加热有限元分析模型。研究了磁场作用下材料编织结构的升温机理，深入探讨了45#钢和玻璃纤维增强塑料（FRP）制成的模具对CFRP加热过程的影响。研究了缠绕角度为89度、45度以及平纹编织的CFRP圆管。研究发现，当金属模具加热时，CFRP结构对温度分布几乎没有影响。然而，当玻璃纤维增强塑料模具加热时，温度场随CFRP结构而变化，纤维交叉点越多，温度场越均匀。通过实验验证了有限元模型的准确性。本研究旨在为实际工业生产提供理论指导。
