An experimental investigation on the FPZ properties in concrete using digital image correlation technique

被引：295

作者：

Wu, ZhiMin ^{[1
]}

Rong, Hua ^{[1
]}

Zheng, JianJun ^{[2
]}

Xu, Feng ^{[1
]}

Dong, Wei ^{[1
]}

机构：

[1] Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian 116024, Peoples R China

[2] Zhejiang Univ Technol, Sch Civil Engn & Architecture, Hangzhou 310014, Zhejiang, Peoples R China

来源：

ENGINEERING FRACTURE MECHANICS | 2011年 / 78卷 / 17期

关键词：

Concrete; Fracture process zone; Digital image correlation technique; Crack opening displacement; Fracture process zone length; FRACTURE PROCESS ZONE; BEAMS; TOUGHNESS; MODEL;

D O I：

10.1016/j.engfracmech.2011.08.016

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

This paper presents an experimental investigation on the properties of the fracture process zone (FPZ) in concrete using the digital image correlation (DIC) technique. Based on the experimental results, it is found that the FPZ length increases during crack propagation but decreases after the FPZ is fully developed. The FPZ length at the peak load and the maximum FPZ length increase with an increase in specimen height, but decrease by increasing the notch depth to specimen height ratio. It is also found that the crack extension length at the peak load is about 0.25 times the ligament length. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：2978 / 2990

页数：13

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