Structure Damage Location Identification Based on Mean Curvature Modal Damage Factors and Wavelet Transform

Abstract

The damage index, which is the wavelet transform on the deviation of the mean value of curvature modal shape before and after structural damage, is proposed and applied to identify the location of the damage of the structure. The numerical simulation of a damaged cantilever beam shows that the damage presence and its location can be determined by analyzing the variation and distribution of wavelet transform coefficients.