Particle displacement analysis in 3D CT images of polymer composites under-compressive load

We have proposed a method to analyze the displacement of each particle inside a polymer composite material using 3D x-ray CT image analysis. X-ray CT imaging was performed with the sample deformed and before load application to obtain images to analyze the changes in the internal structure caused by sample deformation. By tracking particles detected from 3D CT images between images, we analyzed particle displacements due to sample deformation and visualized them using vector maps. Particle displacement due to sample deformation tended to be larger in the compression direction for particles on the top side of the sample.