Identify cracks in structure by Wavelet transform method
Abstract
In this paper, sensitivity for the transverse displacements of the plate with a crack is analyzed using the Extended Finite Element Method (XFEM) and the Wavelet transform. The effects of the crack length and location are investigated. The transverse displacements obtained from the static analysis are studied by using the XFEM and the Newmark method based on an 4-node quadrilateral isoparametric element. The transverse displacements for transformation are interpolated by the shape functions, the coordinates, and the transverse displacements of the nodes of every element. The examined results show that the transformed transverse displacements are very sensitive to the crack length and location.