Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Simple Model for the Deformation-Induced Relaxation of Glassy Polymers   Glassy polymers show strain hardening: at constant extensional load, their
flow first accelerates, then arrests. Recent experiments have found this to be
accompanied by a striking and unexplained dip in the segmental relaxation time.
Here we explain such behavior by combining a minimal model of flow-induced
liquefaction of a glass, with a description of the stress carried by strained
polymers, creating a non-factorable interplay between aging and strain-induced
rejuvenation. Under constant load, liquefaction of segmental motion permits
strong flow that creates polymer-borne stress. This slows the deformation
enough for the segmental modes to re-vitrify, causing strain hardening.

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The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
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The categories of this paper are: q-fin
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The categories of this paper are: astro-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: eess
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The categories of this paper are: hep-ex
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The categories of this paper are: nucl-th
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The categories of this paper are: plasm-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: gr-qc
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The categories of this paper are: dg-ga
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The categories of this paper are: cs
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The categories of this paper are: cmp-lg
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The categories of this paper are: atom-ph
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The categories of this paper are: math