Fracture reveals clustering in cohesive granular matter
نویسندگان
چکیده
منابع مشابه
Fracture of a model cohesive granular material.
We study experimentally the fracture mechanisms of a model cohesive granular medium consisting of glass beads held together by solidified polymer bridges. The elastic response of this material can be controlled by changing the cross-linking of the polymer phase, for example. Here we show that its fracture toughness can be tuned over an order of magnitude by adjusting the stiffness and size of t...
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Inelastic particles are used to model the behavior of granular media. On the level of individual grains, \inelastic collapse" plays an essential role for clustering in a variety of situations. On a macroscopic level, few-body dynamics can still be relevant. Orientation, form, and compactness of clusters in shear ow depend on microscopic features of the collision dynamics. Under the same externa...
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Discrete Element Methods (DEM) are a useful tool to model the fracture of cohesive granular materials. For this kind of application, simple particle shapes (discs in 2D, spheres in 3D) are usually employed. However, dealing with more general particle shapes allows to account for the natural heterogeneity of grains inside real materials. We present a discrete model allowing to mimic cohesion bet...
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ژورنال
عنوان ژورنال: EPL (Europhysics Letters)
سال: 2016
ISSN: 0295-5075,1286-4854
DOI: 10.1209/0295-5075/115/64001