Application of continuous wavelet transform to detect damage in thin-walled beams coupled in bending and torsion
Date
2008-06-20
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Techno-Press
Abstract
The application of continuous wavelet transform to detect damage in thin-walled beams coupled in bending and torsion is presented. Damage is modeled as notch, crack, or decrease in modulus of elasticity and the wavelet coefficients that are functions of scale and translation parameters are plotted for different scales to seel sharp changes. The extent of damage can be estimated once the damage location is determined for the magnitudeds of wavelet coefficients that is proportioal to the loss of resistance. The results show that the mode shape derived from properly selected transducer distance will enable the wavelet coefficients with maximum amplitute so that the location and extent of damage can be effectively evaluated.
Description
Keywords
Engineering, Thin walled structures, Torsional stress, Continuous wavelet transform, Damage location, Mode shapes, Thin-walled beam, Translation parameters, Wavelet coefficients, Wavelet transforms, Cracks
Citation
Gökdağ, H. (2008). "Application of continuous wavelet transform to detect damage in thin-walled beams coupled in bending and torsion". Structural Engineering and Mechanics, 26(3), 351-354.