Determination of crack location in beam using using stationary wavelet transform of mode shapes
This paper proposed new crack identification method on multiple cracked beams made of functionally graded material (FGM) by using stationary wavelet transform (SWT) of measured mode shapes. This study also investigated the influence of Gaussian noise to SWT. Cracks were modelled as equivalent springs and mode shapes are obtained from multiple cracked FGM beam element model. The investigated results show that crack identification method by using SWT of mode shapes is efficient and realizable.
Keywords: crack; FGM; DSM; SWT; mode shapes.crack; FGM; DSM; SWT; mode shapes.
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