Temperature Effect on Adhesively Bonded CFRP and Steel Double Strap Joints

被引：0
|
作者：
Nguyen, Tien C. [1 ]
Bai, Yu [1 ]
Zhao, Xiao-Ling [1 ]
Bambach, M. R. [1 ]
Al-Mahaidi, Riadh [2 ]
机构：
[1] Monash Univ, Dept Civil Engn, Melbourne, Vic 3004, Australia
[2] Swinburne Univ Technol, Fac Engn & Ind Sci, Melbourne, Vic, Australia
来源：
ADVANCES IN FRP COMPOSITES IN CIVIL ENGINEERING | 2010年
关键词：
COMPOSITES;
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Steel/CFRP double-strap joints adhesive-bonded by epoxy were tested in tension under different temperatures ranging between 20 degrees C and 60 degrees C. Effective bond length was experimentally determined at 20 degrees C first. Specimens, varied with the effective, half and twice the effective bond length and with one or three carbon fibre layers, were examined under the specified temperature range. It was found that the ultimate load and the joint stiffness of all specimens decreased significantly at temperatures near to Tg. Based on the kinetic modeling of glass transition of adhesive, a mechanism-based model was proposed to describe the strength and stiffness degradation of steel/CFRP double strap joints at elevated temperatures, and the modeling results were validated by the corresponding experimental measurements. In addition, it demonstrated that the effec-tive bond length is increased with temperature.
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页码：877 / +
页数：2
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