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http://dx.doi.org/10.5050/KSNVE.2010.20.3.272

Damage Detection of Plate Using Long Continuous Sensor and Wave Propagation  

Lee, Jong-Won (남서울대학교 건축공학과)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.20, no.3, 2010 , pp. 272-278 More about this Journal
Abstract
A method for damage detection in a plate structure is presented based on strain waves that are generated by impact or damage in the structure. Strain responses from continuous sensors, which are long ribbon-like sensors made from piezoceramic fibers or other materials, were used with a neural network technique to estimate the damage location. The continuous sensor uses only a small number of channels of data acquisition and can cover large areas of the structure. A grid type structural neural system composed of the continuous sensors was developed for effective damage localization in a plate structure. The ratios of maximum strains and arrival times of the maximum strains obtained from the continuous sensors were used as input data to a neural network. Simulated damage localizations on a plate were carried out and the identified damage locations agreed reasonably well with the exact damage locations.
Keywords
Continuous Sensor; Damage Detection; Wave Propagation;
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Times Cited By KSCI : 1  (Citation Analysis)
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