The detection of damage prior to the degradation of structural parameters of plates is investigated using an algorithm based on the continuous wavelet transform. Plates are examined because they are one of the basic building blocks for many structures, such as naval ships. A representative plate geometry is evaluated using finite element analysis. Damage to connecting joints, stiffeners, cracks, and plate inconsistencies is modeled and the ability of a wavelet based algorithm to detect and locate is evaluated. The plate is subjected to dynamic loads, such as impulse and oscillatory. From the finite element results, time histories are extracted to simulate in-plane strain sensor data. The wavelet algorithm is applied to the strain data.
Detecting Plate Damage by Using Wavelets
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Wimmer, SA, & DeGiorgi, VG. "Detecting Plate Damage by Using Wavelets." Proceedings of the ASME 2003 International Mechanical Engineering Congress and Exposition. Nondestructive Evaluation. Washington, DC, USA. November 15–21, 2003. pp. 1-8. ASME. https://doi.org/10.1115/IMECE2003-41197
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