A fracture-based model for FRP debonding in strengthened beams

被引：61

作者：

Gunes, Oguz ^{[2
]}

Buyukozturk, Oral ^{[1
]}

Karaca, Erdem ^{[3
]}

机构：

[1] MIT, Cambridge, MA 02139 USA

[2] Atilim Univ, Dept Civil Engn, TR-06836 Ankara, Turkey

[3] Swiss Reinsurance Amer Corp, Armonk, NY 10583 USA

来源：

ENGINEERING FRACTURE MECHANICS | 2009年 / 76卷 / 12期

关键词：

FRP; Strengthening; Beams; Debonding; Fracture; FIBER-REINFORCED POLYMER; COHESIVE ZONE MODEL; PLATED CONCRETE; BOND; COMPOSITES; INTERFACES; FAILURE; DELAMINATION; MECHANICS; CRACKING;

D O I：

10.1016/j.engfracmech.2009.04.011

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

This paper presents an experimental and analytical research study aimed at understanding and modeling of debonding failures in fiber reinforced polymer (FRF) strengthened reinforced concrete (RC) beams. The experimental program investigated debonding failure modes and mechanisms in beams strengthened in shear and/or flexure and tested under monotonic loading. A newly developed fracture mechanics based model considers the global energy balance of the system and predicts the FRP debonding failure load by characterizing the dominant mechanisms of energy dissipation during debonding. Validation of the model is performed using experimental data from several independent research studies and a design procedure is outlined. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1897 / 1909

页数：13

共 51 条

[41] STEADY-STATE CRACKING IN BRITTLE SUBSTRATES BENEATH ADHERENT FILMS [J].