碳纤维增强复合材料加固木材界面黏结滑移模型研究  

Study on CFRP-wood interface of bond-slip model

作　　者：周莉[1] 黄奕辉[1] 

机构地区：[1]华侨大学土木工程学院,福建泉州362021

出　　处：《郑州轻工业学院学报（自然科学版）》2012年第2期59-62,共4页Journal of Zhengzhou University of Light Industry:Natural Science

基　　金：国家科技攻关(国际合作)项目(2005DFBA0002);澳门科学技术发展基金项目(524/263/SAF/2008)

摘　　要：以12个粘贴碳纤维增强复合材料(CFRP)的木材试件为对象,考察黏结长度对黏结性能的影响,获得相应的局部黏结滑移曲线.由试验结果和理论分析可得出如下结论:CFRP与木材界面的剥离是从加载端向自由端逐渐发展的;黏结剪应力-滑移曲线基本上为两段式,由上升段和下降段组成,上升段呈现直线形式,下降段则为双曲线形.通过对实验结果进行Matlab编程拟合,得到了CFRP加固樟木顺纹黏结滑移本构模型,该模型与实验结果较吻合.Twelve specimens of externally bonded CFRP（carbon fiber reinforced polymer/plastic） plate were employed to analyze the influences of the bond length,and obtain the curve about the local bond-slip relationship.Based on the test results and theoretical analysis,the conclusions can be obtained as flollows：the debonding between CFRP and wood was gradually developing from the loaded end to the freed end;the bond-slip curve basically has two parts,the rising step as the shape of straight,and the declining step as the shape of hyperbolic curve.A local bond-slip model of fir grain direction with fixed CFRP was proposed by Matlab fitting the test results.The model matches the experimental results well.

关 键 词：碳纤维增强复合材料 木材界面 黏结滑移模型 

分 类 号：TU502[建筑科学—建筑技术科学]