Detection and Location of Damages by the Embedded Smart Piezo-Sensor Array (特集 知的複合材料) Detection and Location of Damages by the Embedded Smart Piezo-Sensor Array

この論文にアクセスする

この論文をさがす

著者

抄録

This study was focused at investigating the characteristics of a new smart-piezo-sensor for assessing the integrity of structures. We prepared two types of smart piezo-sensor layers such as a linear strip and planar sheet to investigate the characteristics of signal propagation in the sensor layer as well as the overall performance of each sensor. These smart-piezo-array-sensors, called Smart Active Layer (SAL), were fabricated by using a piezoelectric element and protection polymer layer. The performance of this sensor system was verified by simulating the wave propagation through several test conditions such as a patched layer on the thin plate, embedded layer between reinforcing FRP sheet and the surface of concrete beam, and an embedded layer into the model aircraft wing. When the cracks existed between the sensors and AE sources, the amplitude of propagated waveforms showed an additional decrease as expected. It can explain that a crack interferes with the progress of the wave produced by pulse-input event. Also, the known distance between each sensor element on the SAL allowed the sensors to detect the location of defects automatically. From the laboratory experimental study, we confirmed that the characteristics of wave propagation of the patch/embedding type smart-piezo-sensor affected an overall performance in detecting an elastic wave.

収録刊行物

  • 実験力学 : journal of JSEM  

    実験力学 : journal of JSEM 6(4), 392-397, 2006-12-25 

    The Japanese Society for Experimental Mechanics

参考文献:  7件

参考文献を見るにはログインが必要です。ユーザIDをお持ちでない方は新規登録してください。

各種コード

  • NII論文ID(NAID)
    10018458158
  • NII書誌ID(NCID)
    AA11822914
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13464930
  • NDL 記事登録ID
    8632752
  • NDL 雑誌分類
    ZM17(科学技術--科学技術一般--力学・応用力学)
  • NDL 請求記号
    Z74-C355
  • データ提供元
    CJP書誌  NDL  J-STAGE 
ページトップへ