连续碳纤维增强热固性预浸料压实性能的试验研究

doi:10.19936/j.cnki.2096-8000.20220728.007

复合材料科学与工程 ›› 2022, Vol. 0 ›› Issue (7): 45-51.DOI: 10.19936/j.cnki.2096-8000.20220728.007

连续碳纤维增强热固性预浸料压实性能的试验研究

满珈诚¹, 侯进森³, 李哲夫¹, 岳广全^1*, 徐鹏², 姜碧羽², 刘卫平^1,2

1.东华大学,上海201620;
2.上海飞机制造有限公司,上海201324;
3.上海复合材料科技有限公司,上海201112

收稿日期:2021-08-16 发布日期:2022-08-23
通讯作者: 岳广全(1982-),男,博士,高级工程师,主要从事纤维增强树脂基复合材料方面的研究,yueguangquan@dhu.edu.cn。
作者简介:满珈诚(1998-),男,硕士研究生,主要从事纤维增强树脂基复合材料工艺方面的研究。
基金资助:
上海市科技创新行动计划项目(19DZ1100300);上海市科技创新行动计划项目(20511106902);中央高校基本科研业务费专项资金

Experimental study on compacting performance of continuous carbon fiber reinforced thermosetting prepreg

MAN Jia-cheng¹, HOU Jin-sen³, LI Zhe-fu¹, YUE Guang-quan^1*, XU Peng², JIANG Bi-yu², LIU Wei-ping^1,2

1. Donghua University, Shanghai 201620, China;
2. Shanghai Aircraft Manufacturing Co., Ltd., Shanghai 201324, China;
3. Shanghai Compound Materials Technology Co., Ltd., Shanghai 201112, China

Received:2021-08-16 Published:2022-08-23

摘要/Abstract

摘要： 预浸料的压实性能是影响复合材料制件成型质量的一项重要指标,为了能够深入了解预浸料在成型过程中的压实性能,本文建立了有效且稳定的试验方案,试验研究了连续碳纤维/环氧预浸料的压实行为,使用万能试验机及自行设计的装置,对预浸料在压实过程中的应力、应变进行了测试和表征,并对尺寸、厚度、温度、下压速率等四个结构和工艺参数进行了控制,以此来探究这些因素对压实行为的影响。结果表明,尺寸、厚度、温度均对应力-应变结果有显著影响,而下压速率影响不大。同时,使用应力硬化模型对试验结果进行拟合,结果表明在预浸料树脂未固化时应力与应变之间存在着指数关系。

关键词: 热固性复合材料, 预浸料, 压实, 试验测试, 应力硬化模型

Abstract: The compaction performance of the prepreg is an important indicator that affects the formation of composite materials. In order to understand the compaction performance of pre-immersion in the formation process, this paper establishes effective and stable test programs. The stress and strain of continuous carbon fiber/epoxy prepreg is carried out, using universal testing machine and self-designing device, test and characterize the prepreg in the compaction process. Four structures and process parameters such as size, thickness, temperature and rate of descent are controlled to explore the impact of these factors against compaction. The results show that size, thickness, temperature have a significant effect on stress strain results, and the rate of descent has little effect. At the same time, the test results are fitted with the stress hardening model, and the results show that there is an index relationship between stress and strain at the time of prepreg resin.

Key words: thermosetting composite, prepreg, compaction, experiment test, stress hardening model

中图分类号:

TB332

满珈诚, 侯进森, 李哲夫, 岳广全, 徐鹏, 姜碧羽, 刘卫平. 连续碳纤维增强热固性预浸料压实性能的试验研究[J]. 复合材料科学与工程, 2022, 0(7): 45-51.

MAN Jia-cheng, HOU Jin-sen, LI Zhe-fu, YUE Guang-quan, XU Peng, JIANG Bi-yu, LIU Wei-ping. Experimental study on compacting performance of continuous carbon fiber reinforced thermosetting prepreg[J]. COMPOSITES SCIENCE AND ENGINEERING, 2022, 0(7): 45-51.

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连续碳纤维增强热固性预浸料压实性能的试验研究

Experimental study on compacting performance of continuous carbon fiber reinforced thermosetting prepreg

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