湿热环境下泡桐木复合材料夹芯结构Ⅰ型界面剥离试验研究

玻璃钢/复合材料 ›› 2017, Vol. 0 ›› Issue (4): 49-53.

湿热环境下泡桐木复合材料夹芯结构Ⅰ型界面剥离试验研究

赵鹏飞, 方园, 刘伟庆^*, 徐丹洋

南京工业大学土木工程学院,南京211816

收稿日期:2016-10-04 出版日期:2017-04-28 发布日期:2017-04-28
通讯作者: 刘伟庆(1964-),男,教授,博士生导师,主要从事结构工程振动控制、复合材料结构方面的研究,wqliu@njtech.edu.cn。
作者简介:赵鹏飞(1991-),男,在读研究生,主要从事复合材料结构方面的研究。
基金资助:
国家自然科学基金项目(51408304,51238003,51608264);江苏省科技厅基础计划研究(自然科学基金)——青年基金(BK20140947)

EXPERIMENTAL STUDY ON BONDING PROPERTY OF GFRP-PAULOWNIA IN THE HYGROTHERMAL ENVIRONMENT

ZHAO Peng-fei, FANG Yuan, LIU Wei-qing^*, XU Dan-yang

College of Civil Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu

Received:2016-10-04 Online:2017-04-28 Published:2017-04-28

摘要/Abstract

摘要： 采用人工加速老化的方法模拟湿热环境,通过泡桐木玻璃纤维增强复合材料夹芯结构的双悬臂梁拉伸剥离试验,研究湿热环境对玻璃纤维增强复合材料(GFRP)面板和泡桐木芯材的粘结性能的影响。试验结果表明,90 d湿热加速老化后泡桐木复合材料夹芯结构的能量释放率下降了32.3%,芯材泡桐木顺纹抗拉强度下降了11.6%,GFRP面板拉伸模量下降了11.0%。

关键词: 玻璃纤维增强复合材料, 泡桐木, 粘结性能, 能量释放率, 夹芯结构

Abstract: The way of artificial accelerated aging to simulate hygrothermal environment was used to investigate the effect of the bonding property of GFRP and paulownia wood in the environment. And, the DCB method was used to test the interfacial properties of the GFRP paulownia sandwich structure. Based on the energy release rates from the test data, the effect of the hygrothermal environment to the interface toughness of the GFRP paulownia sandwich structure was analyzed. Moreover, the tensile property change of paulownia and GFRP in the hygrothermal environment was studied. It was concluded that after 90 days hygrothermal aging, the energy release rate of the paulownia GFRP sandwich composite structures was declined by 32.3%, and the tensile strength of the paulownia cores was decreased by 11.6%. Meanwhile, the tensile modulus of GFRP laminates was reduced by 11.0%.

Key words: glass fiber reinforced composites, paulownia, bonding, energy release rate, sandwich structure

中图分类号:

TB332

赵鹏飞, 方园, 刘伟庆, 徐丹洋. 湿热环境下泡桐木复合材料夹芯结构Ⅰ型界面剥离试验研究[J]. 玻璃钢/复合材料, 2017, 0(4): 49-53.

ZHAO Peng-fei, FANG Yuan, LIU Wei-qing, XU Dan-yang. EXPERIMENTAL STUDY ON BONDING PROPERTY OF GFRP-PAULOWNIA IN THE HYGROTHERMAL ENVIRONMENT[J]. Fiber Reinforced Plastics/Composites, 2017, 0(4): 49-53.

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