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3D Visualization of Shearing in Granular Materials
This paper presents a microscopic characterization of translation (displacement) and rotation of granulate particles during shearing. A cylindrical specimen composed of 6.5-mm spherical plastic particles was sheared under axisymmetric triaxial loading condition. Computed tomography (CT) was used to acquire 3D images of the specimen at three compression stages. The high-resolution CT images were used to visualize the interaction of particles and to identify the 3D coordinates of 400 particles located at the central portion of the specimen. The translation of particles in 3D are quantified and discussed in details. In addition, rotation of particles are calculated. Compared to particles' sliding, rotation plays a major role in shearing resistance of granular materials. The cumulative vertical rotation angles can be as high as 38° and the horizontal rotation angles have values as high as 60°.
3D Visualization of Shearing in Granular Materials
This paper presents a microscopic characterization of translation (displacement) and rotation of granulate particles during shearing. A cylindrical specimen composed of 6.5-mm spherical plastic particles was sheared under axisymmetric triaxial loading condition. Computed tomography (CT) was used to acquire 3D images of the specimen at three compression stages. The high-resolution CT images were used to visualize the interaction of particles and to identify the 3D coordinates of 400 particles located at the central portion of the specimen. The translation of particles in 3D are quantified and discussed in details. In addition, rotation of particles are calculated. Compared to particles' sliding, rotation plays a major role in shearing resistance of granular materials. The cumulative vertical rotation angles can be as high as 38° and the horizontal rotation angles have values as high as 60°.
3D Visualization of Shearing in Granular Materials
Alshibli, Khalid A. (author) / Alramahi, Bashar (author)
GeoCongress 2006 ; 2006 ; Atlanta, Georgia, United States
GeoCongress 2006 ; 1-6
2006-02-21
Conference paper
Electronic Resource
English
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