Acoustic emission signal for fatigue crack classification on reinforced concrete beam

被引：67
|
作者：
Nor, Noorsuhada Md [1 ]
Ibrahim, Azmi [1 ]
Bunnori, Norazura Muhamad [2 ]
Saman, Hamidah Mohd [1 ]
机构：
[1] Univ Teknol MARA, Fac Civil Engn, Shah Alam 40450, Selangor, Malaysia
[2] USM, Sch Civil Engn, Nibong Tebal 14300, Pulau Pinang, Malaysia
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2013年 / 49卷
关键词：
RA value; Average frequency; Fatigue crack mode; Reinforced concrete; NDE TECHNIQUES; DAMAGE;
D O I：
10.1016/j.conbuildmat.2013.08.057
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Fatigue crack classification on reinforced concrete beam is significantly vital. Acoustic emission (AE) signals were analysed to identify the classes of reinforced concrete (RC) beam corresponding to a specific crack mode. Third point loading fatigue test was carried out based on various range of maximum fatigue loading. The classification of crack for each phase of loading allowed the identification of the cracks mode of the beam namely tensile crack and shear crack. Average frequency and RA value were computed corresponding to channel basis and located event of AE signal and used to classify fatigue crack. The relationship between average frequency and RA value indicated clear trend with respect to crack classifications. Using this relationship trend, estimation of the crack monitoring can be made. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：583 / 590
页数：8
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