EXPERIMENTAL STUDY OF THE EFFECT OF CRACKS ON ALUMINUM 5083-H111 AND THE DIRECTION OF CRACK GROWTH, NUMERICALLY AND EXPERIMENTALLY.

Abstract

       In this study we will provide an overview of the surfaces affected by cracking through the fatigue process which is subjected to a number of rotations with a constant amplitude and a load value of 6 kN. By using a type of aluminum 5083-H111, the samples were examined after being exposed to fracture by Scanning Electron Microscopy (SEM) examination, as well as the direction of Crack Growth Direction (CGD) by making holes away from the original crack, which was made at a vertical and horizontal distance of (11,15) mm. The sample contains three holes, and the distance between the center of each circle is (11,15) mm. The number of rotations is measured with the length of the crack, and the Stress Intensity Factor (SIF) is measured at each length in the sample, and the experimental figures are compared with the numerical figures, and there is a clear match and agreement on the accuracy of the results.