A New Structural Health Monitoring System for Composite Plate
| Autor: | Zhao, Nai Zhi, Yan, Shi |
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| Zdroj: | Advanced Materials Research; January 2011, Vol. 183 Issue: 1 p406-410, 5p |
| Abstrakt: | Damage detection in composite materials can be divided into active and passive approaches. The active approach is usually based on various non-destructive techniques utilizing actuators and/or receivers. Simple laser scans, revealing the change in Lamb wave response amplitudes, have been used to locate delamination and estimate its severity in a composite plate. The validity of the proposed method is demonstrated through experimental studies in which input signals exerted at piezoelectric (PZT) patches on a composite plate are successfully reconstructed by using the time reversal method. The ultimate goal of this study is to develop a reference-free damage diagnosis technique based on the time reversal process so that defects can be identified without relying on any past baseline data. |
| Databáze: | Supplemental Index |
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