Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Image analysis of polycrystalline solar cells and modeling of
  intergranular and transgranular cracking   An innovative image analysis technique is proposed to process real solar cell
pictures, identify grains and grain boundaries in polycrystalline Silicon, and
finally generate finite element meshes. Using a modified intrinsic cohesive
zone model approach to avoid mesh dependency, nonlinear finite element
simulations show how grain boundaries and Silicon bulk properties influence the
crack pattern. Numerical results demonstrate a prevalence of transgranular over
intergranular cracking for similar interface fracture properties of grains and
grain boundaries, in general agreement with the experimental observation.

27
The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol