Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the effect of strain and triaxiality on void evolution in a
  heterogeneous microstructure -- A statistical and single void study of damage
  in DP800   In order to improve the understanding of damage evolution in mechanically
heterogeneous microstructures, like the ones of dual-phase steels, the
influence of the applied stress state is a key element. In this work, we
studied the influence of the globally applied stress state on the evolution of
damage in such a microstructure. Classical damage models allow predictions of
damage during deformation based on considerations of the material as an
isotropic continuum. Here, we investigate their validity in a dual phase
microstructure that is locally dominated by its microstructural morphological
complexity based on a statistical ensemble of thousands of individual voids
formed under different stress states. For this purpose, we combined a
calibrated material model incorporating damage formation to assess the local
stress state in samples with different notch geometries and high-resolution
electron microscopy of large areas using a deep learning-based automated
micrograph analysis to detect and classify microstructural voids according to
their source of origin. This allowed us to obtain both the continuum stress
state during deformation and statistically relevant data of individual void
formation. We found that the applied plastic strain is the major influence on
the overall number, and therefore the nucleation of new voids, while
triaxiality correlates with the median void size, supporting its proposed
influence on void growth. In contrast, coalescence of voids leading to failure
appears related to local instabilities in the form of shear band formation and
is therefore only indirectly determined by the global stress state in that it
determines the global distribution, density and size of voids.

23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con