碳纤维布与木材界面粘结性能的数值模拟  

Numerical analysis for bonding in the interface between CFRP and wood

作　　者：薛建阳[1] 张风亮 赵鸿铁[1] 谢启芳[1] 隋 吴占景[1] 

机构地区：[1]西安建筑科技大学土木工程学院,陕西西安710055 [2]陕西省建筑科学研究院,陕西西安710082

出　　处：《西安建筑科技大学学报（自然科学版）》2013年第3期305-310,共6页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

基　　金：国家科技支撑计划资助课题(2013BAK01B03-02);国家自然科学基金资助项目(51278399);国家文物局文物保护科学和技术研究课题(20110123)

摘　　要：随着碳纤维布在木结构古建筑加固领域的广泛应用,明确碳纤维布与木材之间的界面粘结力学性能是进行加固的前提和基础.主要结合碳纤维布-木材的单剪试验,对5个粘贴碳纤维布的试验木块采用AN-SYS有限元软件进行了非线性数值模拟,研究了碳纤维布粘结长度及宽度变化对极限粘结荷载的影响,分析了碳纤维布的应变分布规律以及界面粘结剪应力的分布特点和传递过程,并给出了试验值和计算值的误差分析.计算结果表明,采用的模拟界面粘结性能的有限元方法具有可行性.With the CFRP widely used in the field of strengthened ancient structure,explicit bonding property between the CFRP and wood was the premise and foundation of strengthening.Based on the single-shear experiment between CFRP and wood,nonlinear numerical analysis was carried out on 5wood sticking CFRP by ANSYS finite element software,and the influence of the limit bonding load produced due to the change of CFRP bond length and width.The strain distribution rule of CFRP and distribution characteristics of bonding shear stress in interface and transfer process were obtained,and the error analysis between test value and calculated value was given.The calculated results showed that it was feasible to simulate the bonding property in interface by finite element method.

关 键 词：碳纤维布 粘结性能 界面 木材 有限元 

分 类 号：TU366[建筑科学—结构工程] TU311.1