Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Percolating Plastic Failure as a Mechanism for Shear Softening in
  Amorphous Solids   ``Shear softening" refers to the observed reduction in shear modulus when the
stress on an amorphous solid is increased beyond the initial linear region.
Careful numerical quasi-static simulations reveal an intimate relation between
plastic failure and shear softening. The attaintment of the steady-state value
of the shear modulus associated with plastic flow is identified with a
percolation of the regions that underwent a plastic event. We present an
elementary ``two-state" model that interpolates between failed and virgin
regions and provides a simple and effective characterization of the shear
softening.

23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
8
The categories of this paper are: hep-ex