基于RTM-预浸料工艺的数值模拟与固化制度优化

doi:10.19936/j.cnki.2096-8000.20260128.012

复合材料科学与工程 ›› 2026, Vol. 0 ›› Issue (1): 82-91.DOI: 10.19936/j.cnki.2096-8000.20260128.012

基于RTM-预浸料工艺的数值模拟与固化制度优化

陈婕¹, 谢金鑫², 彭飞², 张峰嘉¹, 许林鹏¹, 周何乐子^1*, 周华民¹

1.华中科技大学材料科学与工程学院,武汉 430074;
2.北京宇航系统工程研究所,北京 100076

收稿日期:2024-10-28 出版日期:2026-01-28 发布日期:2026-03-12
通讯作者: 周何乐子(1990—),女,博士,副教授,研究方向为复合材料多尺度改性,复合材料监测、仿真与软件开发,helezizhou@hust.edu.cn。
作者简介:陈婕(2000—),女,硕士,研究方向为复合材料仿真与复合材料成型智能化控制。
基金资助:
民用航天预研项目(D030102)

Simulation and optimization based on RTM-prepreg process

CHEN Jie¹, XIE Jinxin², PENG Fei², ZHANG Fengjia¹, XU Linpeng¹, ZHOU-HE Lezi^1*, ZHOU Huamin¹

1. School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;
2. Beijing Institute of Spacecraft System Engineering, Beijing 100076, China

Received:2024-10-28 Online:2026-01-28 Published:2026-03-12

摘要/Abstract

摘要： RTM-预浸料工艺界面处预浸料和树脂固化的不同步导致了明显的固化度梯度,使得界面力学性能下降,但是目前少有共固化过程的数值模拟和对其固化制度的探索。基于环氧树脂和碳纤维/环氧树脂预浸料的固化动力学模型,利用ABAQUS软件的二次开发对共固化过程进行数值模拟,从而优化工艺曲线参数,使界面处两种材料同步固化,并通过短梁剪切试验和双悬臂梁试验验证了模拟结果的可靠性。结果表明:界面的两种材料存在放热耦合作用,但对界面材料的固化影响很小;在不同固化制度下,层合板界面层短梁剪切强度和Ⅰ型层间断裂韧性均优于预浸料层相应值,且采用以约5 ℃/min的升温速率升温至180 ℃保温2 h的固化制度,层合板力学性能更优。研究结果对实际生产具有一定的指导意义。

关键词: RTM-预浸料工艺, 共固化, 数值模拟, 优化, 试验验证

Abstract: The unsynchronized curing of prepreg and resin at the interface of RTM-prepreg process results in an obvious curing gradient, which reduces the mechanical properties of the interface. However, there are few studies on the co-curing process simulation and co-curing process curve. In this study, the mathematical models of the curing kinetics of epoxy resin and carbon fiber/epoxy resin prepreg were established, and the co-curing process was simulated by user-defined subroutine of ABAQUS software. The parameters of temperature profile such as heating rate, holding time, and holding temperature were optimized to simultaneous curing of the two materials at the interface. Finally, the reliability of the simulation results was verified by short beam shear experiments and double cantilever beam experiments. The results show that the two materials at the interface have exothermic coupling, but have little effect on the resin curing of the interface materials. The short beam shear strength and mode Ⅰ interlaminar fracture toughness of the interface of the laminate are better than those of the prepreg layer under different curing curve. When the temperature profile is about 5 ℃/min, the temperature is raised to 180 ℃ and kept for 2 hours, the mechanical properties of laminates are better than those of other curing curve. It has certain guiding significance for actual production.

Key words: RTM-prepreg process , co-curing, simulation, optimized, experimental validation

中图分类号:

TB332

陈婕, 谢金鑫, 彭飞, 张峰嘉, 许林鹏, 周何乐子, 周华民. 基于RTM-预浸料工艺的数值模拟与固化制度优化[J]. 复合材料科学与工程, 2026, 0(1): 82-91.

CHEN Jie, XIE Jinxin, PENG Fei, ZHANG Fengjia, XU Linpeng, ZHOU-HE Lezi, ZHOU Huamin. Simulation and optimization based on RTM-prepreg process[J]. COMPOSITES SCIENCE AND ENGINEERING, 2026, 0(1): 82-91.

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基于RTM-预浸料工艺的数值模拟与固化制度优化

Simulation and optimization based on RTM-prepreg process

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