Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Experimental Measures of Affine and Non-affine Deformation in Granular
  Shear   Through 2D granular Couette flow experiments, we probe failure and
deformation of disordered solids under shear. Shear produces smooth affine
deformations in such a solid and also irresversible so-called non-affine
particle displacements. We examine both processes. We show that the non-affine
part is associated with diffusion, and also can be used to define a granular
temperature. Distributions for single particle non-affine displacements,
$\dri$, satisfy $P_1(\dri) \propto \exp [-|\dri/\Delta r|^{\alpha}]$ ($\alpha
\stackrel{<}{\sim} 2$). We suggest that the shear band forms due to a radially
outward diffusive flux/non-affine motion which is balanced in the steady state
by inward diffusion due to density gradients.

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The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
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The categories of this paper are: adap-org
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
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The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics