Abdulaziz Alzurahi - العربية

Carbon fiber composites that are used for airplanes are usually manually drilled in terms of material hole preparation. However, there is a better approach for creating a pre-existed hole with an instrument automatically using threaded tailoring machines that manufacture carbon fiber materials using programmable procedures. ِ Abdulaziz's invention and the novel experimental methodology analyze a large set of images using computer algorithms to detect image-targeted displacements using 3D Digital Imaging Correlation (DIC). The experimental data are acquired through two DIC cameras using a novel bearing experimental setup analysis that has been designed specifically for hole-bearing investigation. Each DIC camera records the image per 1 second as the specimen is failing under a bearing load in the laboratory. A 6 mm shaft is implemented and attached throughout the specimen in the laboratory and displaced through the y-axis until the failure stage of the structure. The 3D-DIC images are analyzed at the end stage in terms of crack initiations and propagations, fiber delamination, and hole failure patterns and characterizations. The experimental methodology can be expanded for various material testing using different grades and properties of materials, several thickness investigations, and different hole investigations. It has wide applications in aerospace and automotive industries