Nondestructive Technique for the Determination of Cracks Parameters by Eddy Current in Differential Mode

In this paper, a nondestructive technique is used as a tool to control cracks and microcracks in materials. A simulation by a numerical approach such as the finite element method is employed to detect cracks in materials and eventually to study their propagation using a crucial parameter such as the stress intensity factor. This approach has been used in the aircraft industry to control cracks. Besides, it makes it possible to highlight the defects of parts while preserving the integrity of the controlled products. On the other side, it highlights the reliability of the control of defects and gives convincing results for the improvement of the quality and the safety of the material.