Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An FFT-solver used for virtual Dynamic Mechanical Analysis experiments:
  Application on a glassy/amorphous system and on a particulate composite   FFT-based solvers are increasingly used by many researcher groups interested
in modelling the mechanical behavior associated to a heterogeneous
microstructure. A development is reported here that concerns the viscoelastic
behavior of composite structures generally studied experimentally through
Dynamic Mechanical Analysis (DMA). A parallelized computation code developed
under complex-valued quantities provides virtual DMA experiments directly in
the frequency domain on a heterogenous system described by a voxel grid of
mechanical properties. The achieved precision and computation times are very
good. An effort has been made to show the application of such virtual DMA tool
starting from two examples found in the literature: the modelling of
glassy/amorphous systems at a small scale and the modelling of experimental
data obtained in temperature sweeping mode by DMA on a particulate composite
made of glass beads and a polystyrene matrix, at a larger scale. Both examples
show how virtual DMA can contribute to question, analyze, understand relaxation
phenomena either on the theoretical or experimental point of view.

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The categories of this paper are: plasm-ph
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The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat
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The categories of this paper are: atom-ph
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The categories of this paper are: eess
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The categories of this paper are: hep-lat
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The categories of this paper are: bayes-an
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The categories of this paper are: nucl-ex
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The categories of this paper are: chao-dyn
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The categories of this paper are: alg-geom
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The categories of this paper are: q-bio
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The categories of this paper are: dg-ga
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: math-ph