Abstract
The quasi-solid-fluid phase transition of granular materials is closely related to the shear rate and solid concentration in addition to their intrinsic properties. The contact duration and the coordination number are two important temporal-spatial parameters to describe the granular interaction in phase transition. In this study, characteristics of the contact duration and the coordination number associated with the transition processes are determined using a 3D discrete element model under different shear rates and concentrations. The resulting macroscopic stress and strain-rate relations are discussed. The temporal and spatial parameters provide a linkage between the macroscopic constitutive law and interparticle micromechanics.
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Ji, S., Shen, H.H. Characteristics of temporalspatial parameters in quasisolid-fluid phase transition of granular materials. CHINESE SCI BULL 51, 646–654 (2006). https://doi.org/10.1007/s11434-006-0646-y
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DOI: https://doi.org/10.1007/s11434-006-0646-y