Determination of the stress intensity factors due to corrosion cracking in ferroconcrete by digital image processing reflection photoelasticity

被引：6

作者：

Chang, Che Way ^{[1
]}

Lien, Hung Sheng ^{[1
]}

Lin, Chen Hua ^{[1
]}

机构：

[1] Chung Hua Univ, Dept Civil Engn & Engn Informat, Hsinchu 300, Taiwan

来源：

CORROSION SCIENCE | 2010年 / 52卷 / 05期

关键词：

Steel reinforced concrete; Digital image reflection photoelasticity; Corrosion cracking; COVER CRACKING; CONCRETE; TIME; REINFORCEMENT; PREDICTION; INITIATION; MODEL;

D O I：

10.1016/j.corsci.2009.12.027

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nucleation of corrosion cracking can be detected and analyzed by digital image processing reflection photoelasticity by which the process mechanisms of crack extensions due to corrosion are quantitatively estimated. This study examines the distribution of expansion stress measured in initial cracking and partial cracking stages. Based on optical linear elastic fracture mechanics, the relation between the stress intensity factors and increment extensions are generated in different corrosion times. The accuracy of the method is demonstrated by comparisons of the predictions, the experimental predictions, and the numerical results. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1570 / 1575

页数：6

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