Resolution Wavelet and Online Damage Detection for Composite Material Structure Dynamic Response Signal

Abstract:

In this paper, using piezoelectric patches bounded or embedded in composite material structures as actuators and sensors, the system for exciting the structure and sensing its dynamic response can be established. Extracting damage information from the response and monitoring the perturbations of structural dynamics can be implemented using wavelet analysis. This will conduce to the capture of the accurate time of damage occurrence. The method developed in this paper can help to build the system of online damage detection and health monitoring of composite material structures when they cannot be directly observed or measured.

• Periodical: Advanced Materials Research (Volumes 79-82)
• Pages: 1519-1522
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.79-82.1519
• Online since: August 2009
• Authors: Wei Bing Hu, Qiang Deng
• Keywords: Composite Structure, Damage Detection, Structural Vibration, Wavelet Analysis

References

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