Abstract

We aim to show the feasibility of using confocal microscopy imaging techniques for Digital Volume Correlation (DVC) and analysis of granular mechanics experiments. The first part of this study validates the DVC and confocal microscopy imaging methods for a general problem of uniaxial compression of continuous media. The second part investigates the specific problem of granular mechanics. Intergranular force transmission will be analyzed from 3D image stacks captured using confocal microscopy. DVC methods will be used to analyze the full 3D grain motions and deformations. The intergranular forces will be determined inversely using the Granular Element Method (GEM). Preliminarily results show that confocal microscopy is a useful volumetric imaging method for DVC analyses and shows promise in furthering the study of intergranular force chains and shear bands.

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