复合材料过盈铆接结构吸湿老化行为研究

doi:10.19936/j.cnki.2096-8000.20240428.013

复合材料科学与工程 ›› 2024, Vol. 0 ›› Issue (4): 97-104.DOI: 10.19936/j.cnki.2096-8000.20240428.013

复合材料过盈铆接结构吸湿老化行为研究

桂林景^1,2, 张世广³, 李皓³, 王安康^1,2, 梁鑫河^1,2, 夏岩峰^1,2, 刘佳^1,2

1.天津市紧固连接技术企业重点实验室,天津 300300;
2.航天精工股份有限公司,天津 300300;
3.天津大学机械工程学院,天津 300350

收稿日期:2023-04-12 出版日期:2024-04-28 发布日期:2024-04-28
作者简介:桂林景(1987—),男,硕士,高级工程师,研究方向为航空紧固件的研发与应用,204788175@qq.com。

Study of moisture absorption and aging behavior of composite interference riveted structures

GUI Linjing^1,2, ZHANG Shiguang³, LI Hao³, WANG Ankang^1,2, LIANG Xinhe^1,2, XIA Yanfeng^1,2, LIU Jia^1,2

1. Tianjin Key Laboratory of Fastening and Connecting Technology Enterprises, Tianjin 300300, China;
2. Aerospace Seiko Co., Ltd., Tianjin 300300, China;
3. School of Mechanical Engineering, Tianjin University, Tianjin 300350, China

Received:2023-04-12 Online:2024-04-28 Published:2024-04-28

摘要/Abstract

摘要： 碳纤维增强复合材料(Carbon Fiber Reinforced Polymers,CFRP)中碳纤维与基体的性能差异较大,并且树脂基体对湿度敏感,在潮湿环境中服役的复合材料铆接结构的力学性能与实验室环境状态下时存在较大差异。本文中设计了吸湿老化试验,使用詹茂盛模型对试验数据进行拟合,获得了CFRP吸湿老化状态下力学性能的变化规律,同时还研究了老化后材料的失效机理。基于这个预测模型建立了不同装配条件下复合材料铆接结构的吸湿老化有限元仿真模型,并通过试验验证模型的准确性。通过有限元仿真和试验结合的手段探究了吸湿老化和装配方式对复合材料以及整个连接结构承载性能和失效机理的影响规律。

关键词: 复合材料, 吸湿老化, 抽芯铆钉, 过盈/间隙装配, 有限元仿真

Abstract: The properties of carbon fibers and matrix in carbon fiber reinforced polymers (CFRP) are different, and the resin matrix is sensitive to humidity, so the mechanical properties of riveted composite structures in service in a humid environment differ greatly from those in the laboratory environment. The hygroscopic aging test was designed and the experimental data were fitted using the Zhan’s model to obtain the variation of mechanical properties of CFRP under hygroscopic aging condition, the failure mechanism of the aged material was also studied. Based on this prediction model, a finite element simulation model of composite riveted structure with moisture absorption and aging under different assembly conditions was established, the accuracy of the model was verified by experiments. The effects of moisture absorption aging and assembly method on the bearing performance and failure mechanism of composite and the whole joint structure were investigated by a combination of finite element simulation and experiments.

Key words: CFRP, hygroscopic aging, blind rivets, interference/clearance fit, finite element simulation

中图分类号:

TB332

桂林景, 张世广, 李皓, 王安康, 梁鑫河, 夏岩峰, 刘佳. 复合材料过盈铆接结构吸湿老化行为研究[J]. 复合材料科学与工程, 2024, 0(4): 97-104.

GUI Linjing, ZHANG Shiguang, LI Hao, WANG Ankang, LIANG Xinhe, XIA Yanfeng, LIU Jia. Study of moisture absorption and aging behavior of composite interference riveted structures[J]. COMPOSITES SCIENCE AND ENGINEERING, 2024, 0(4): 97-104.

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复合材料过盈铆接结构吸湿老化行为研究

Study of moisture absorption and aging behavior of composite interference riveted structures

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