Test on the interfacial shear performance of hybrid bonding CFRP

FU Yixiao; YE Jianshu; MA Ying

doi:10.11918/j.issn.0367-6234.201612126

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Test on the interfacial shear performance of hybrid bonding CFRP

更新时间：2026-10-19

- Test on the interfacial shear performance of hybrid bonding CFRP
- Vol. 49, Issue 9, Pages: 2017-9(2017)
- 作者机构：
  
  1. 东南大学交通学院,南京,210096
  2. 南京工程学院,南京,211167
- 作者简介：
- 基金信息：
- DOI：10.11918/j.issn.0367-6234.201612126
  CLC： U445.58
- Published：2017
- 稿件说明：
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FU Yixiao, YE Jianshu, MA Ying. Test on the interfacial shear performance of hybrid bonding CFRP[J]. 2017, 49(9): 2017-9.
DOI：

FU Yixiao, YE Jianshu, MA Ying. Test on the interfacial shear performance of hybrid bonding CFRP[J]. 2017, 49(9): 2017-9. DOI： 10.11918/j.issn.0367-6234.201612126.

摘要

为了研究CFRP布混合粘贴的界面粘结性能，设计了4组自锚式面内双剪试验.根据界面剪应力的发展规律，将CFRP布混合粘贴中碳纤维布由初始受力至破坏的过程划分为3个阶段.试验考虑了碳纤维布不同的粘贴长度因素，分析试验中的破坏形式、破坏过程和界面粘结性能.研究表明CFRP布混合粘贴形式中的钢板锚固件提高了CFRP-混凝土界面的粘结强度，将破坏形态由碳纤维布的剥离破坏转变为碳纤维布的断裂破坏，极大地的提高了碳纤维布材料的强度利用率.碳纤维布在未剥离阶段其界面粘结性能较为稳定，钢板锚固件对碳纤维布的初始剥离影响较小; 在碳纤维布持续剥离阶段，钢板锚固件可以延缓碳纤维布的剥离，使得界面粘结强度提高18.02%.

Abstract

The present study designed four self-anchored in-plane iosipescu shear tests to investigate the interfacial bonding property of hybrid bonding CFRP. According to the interfacial shear stress development trend

this study divided the destruction process of the carbon fiber sheets in hybrid bonding CFRP from the initial force to the final destruction into three stages. Considering the different paste lengths of the carbon fiber sheets in the tests

this paper analyzed the failure mode

destruction process

and the interfacial bonding property in the tests. This study shows that the steel sheet-fastenings in hybrid bonding CFRP improve the bonding strength of CFRP-concrete interface. It makes the failure mode change from carbon fiber sheets debonding failure to carbon fiber sheets fracture failure. As a result

it improves the use ratio of the strength of carbon fiber sheets tremendously. The interfacial bonding property of the carbon fiber sheets is stable at the non-debonding stage of the carbon fiber sheets. The steel sheet-fastenings have a few impacts on the initial debonding of the carbon fiber sheets. In the continual debonding process of the carbon fiber sheets

the steel sheet-fastenings can delay the debonding of the carbon fiber sheets and increase the interfacial bonding strength by 18.02%.

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