Paper Title:
Damage Identification by Embedded Piezoceramic Sensors in the Composite Plate
  Abstract

The embedded structural health monitoring system is envisioned to be an important factor of future structural systems. One of the many attractions of in situ health monitoring system is its capability to inspect the structural systems in less intrusive way over many other visual inspections which require disassembly of built up structures when some indications have appeared that damages have occurred in the structural systems The vacuum assisted resin transfer molding (VARTM) process is used to fabricate woven-glass/phenol composite specimens which have the PZT sensor array embedded in them. The embedded piezoceramic (PZT) sensors are used as both transmitters and receivers. A damage identification approach is developed for a woven-glass/phenol composite laminates with known localized defects. Propagation of the Lamb waves in laminates and their interactions with the defects are examined. Lamb waves are generated by the high power ultrasonic analyzer. A real time active diagnosis system is therefore established. The results obtained show that satisfactory detection accuracy could be achieved by proposed method.

  Info
Periodical
Key Engineering Materials (Volumes 326-328)
Edited by
Soon-Bok Lee and Yun-Jae Kim
Pages
1697-1700
DOI
10.4028/www.scientific.net/KEM.326-328.1697
Citation
H. J. Chun, C. H. Yi, J. H. Byun, "Damage Identification by Embedded Piezoceramic Sensors in the Composite Plate", Key Engineering Materials, Vols. 326-328, pp. 1697-1700, 2006
Online since
December 2006
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Price
$32.00
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