Flaw reconstruction using the Finite Element Method and the experimental method

This paper deals with an inverse problem based on the simultaneous use of the Finite Element Method (FEM) and the experimental method for the shape reconstruction of defects in inhomogeneous material. In a cylindrical specimen including different defects, a classic 2D finite element method is used for flaw echo computations. Results obtained from such calculations are used as the data for the inverse problem solution. A brief result of the shape reconstruction of the experimental method is also presented. Although two different ways get the same results, revealing drawbacks and advantages of the proposed approach as regards to the results.