Evaluation of the acoustic emission 3D localisation accuracy for the mechanical damage monitoring in concrete

被引：54

作者：

Boniface, Antoine ^{[1
]}

Saliba, Jacqueline ^{[1
]}

Sbartai, Zoubir Mehdi ^{[1
]}

Ranaivomanana, Narintsoa ^{[2
]}

Balayssac, Jean-Paul ^{[2
]}

机构：

[1] Univ Bordeaux, Civil Engn Dept, Lab I2M, Bordeaux, France

[2] INSA UPS Genie Civil, LMDC, 135 Ave Rangueil, F-31077 Toulouse 04, France

来源：

ENGINEERING FRACTURE MECHANICS | 2020年 / 223卷

关键词：

Acoustic emission; Concrete; Damage; Source location accuracy; Crack; FRACTURE PROCESS ZONE; SOURCE LOCATION; SIGNALS; SUBJECT; MODEL;

D O I：

10.1016/j.engfracmech.2019.106742

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

One of the main interests of the Acoustic Emission (AE) technique is its capability to detect and localise damage in structures. In this paper, the accuracy of AE sources localisation in concrete is studied. Several methods related to the choice of the onset detection of AE signals and to the location algorithm are evaluated and compared. The results show an important influence of the onset detection method on the location accuracy of AE events. The choice of the minimisation algorithm depends on the desired accuracy and the computation time. A statistical analysis based on the distribution of AE events and energy is presented for the detection of damages and the monitoring of the crack propagation. The comparison of the presented methodology demonstrates comparative results with Digital Image Correlation (DIC).

引用

页数：16

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