Fiber identification of braided composites using micro-computed tomography

Braided composites contain interwoven fibers that are embedded in a matrix material. Advanced measurement methods required to accurately measure and characterize braided due their composition. Micro-computed tomography (μCT) is an X-ray based method allows for the internal structure of objects be examined. High-resolution μCT geometry measured. Braid samples were measured with voxel size 1.0 μm3, which resulted field view 4.904 x 3.064 mm3. With this view, individual within braid yarns could identified The scientific visualization software package Avizo XFiber extension was used identify yarn from collected measurements. Fiber properties such as orientation angles (φ θ), curved fiber length, tortuosity, diameter obtained. Additionally, finite element mesh geometries created. presented methodology provides roadmap accurate modeling composite unit cell using high-resolution data.