Damage Detection of Beams Based on Experimental Wavelet Analysis of Flexible Waves

Zheng Li; Shuman Xia; J.W. Fan; Xian Yue Su

doi:10.4028/www.scientific.net/KEM.261-263.1373

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A Prediction Method of Corrosion Degradation and Corrosion Fatigue Strength of TMCP Steel
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A Structure Nondestructive Evaluation Using Laser-Generated Ultrasonic Application
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Damage Detection of Beams Based on Experimental Wavelet Analysis of Flexible Waves
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Nondestructive Evaluation and Fracture Mechanism of Smart Material
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UT System Composition and Welding Flaw Classification for SWP Stability Estimation
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Optimization of Testing Method in Comparison with the Coated Composites and Metals by Vibratory Cavitation Test
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 261-263Damage Detection of Beams Based on Experimental...

Damage Detection of Beams Based on Experimental Wavelet Analysis of Flexible Waves

Abstract:

In this paper, the continuous wavelet transform by the Gabor wavelet is applied to analyzing flexural waves in a cantilever beam with an edge crack. The amplitudes and arrival times of the incident, reflected and transmitted waves at a certain frequency are extracted from the wave signals to identify the damage location exactly and estimate the damage extent qualitatively. The results show that this is an effective damage detection method and can be extended to the damage detection of complicated structures.