Application of cement-based piezoelectric composites in acoustic emission detection for concrete

被引：2

作者：

Qin, Lei ^{[1
]}

Peng, Yaping ^{[1
]}

Ren, Hongwei ^{[2
]}

Li, Zongjin ^{[3
]}

机构：

[1] Univ Jinan, Sch Civil Engn & Architecture, Jinan 250022, Peoples R China

[2] Univ Jinan, Sch Control Sci & Engn, Jinan 250022, Peoples R China

[3] Hong Kong Univ Sci & Technol, Dept Civil Engn, Kowloon, Hong Kong, Peoples R China

来源：

SECOND INTERNATIONAL CONFERENCE ON SMART MATERIALS AND NANOTECHNOLOGY IN ENGINEERING | 2009年 / 7493卷

关键词：

Health monitoring; cement-based piezoelectric composites; acoustic emission; concrete;

D O I：

10.1117/12.842045

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

1-3 cement-based piezoelectric composites that have good compatibility with concrete material have been developed for health monitoring of concrete structures. Transducers made of this type of composites have been especially designed to meet the requirement of being embedded into concrete materials. In the property calibration, the transducers show broadband frequency response which is the basic requirement of acoustic emission (AE) transducers. The frequency response of the transducers made of 1-3 cement-based composites and piezoelectric ceramic are compared. Plain concrete beams with embedded 1-3 cement-based piezoelectric transducers are prepared and tested. During loading, AE events are recorded. The accumulated AE event number is analyzed with the loading history. The damage evolution of concrete beam could be monitored using the system including embedded transducers and software to record and analyze the data.

引用

页数：9

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