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Elasticity and Plasticity in Stiff and Flexible Oligomeric Glasses

Authors
  • Gendelman, Oleg
  • Hentschel, H. George E.
  • Mishra, Pankaj K.
  • Procaccia, Itamar
  • Zylberg, Jacques
Type
Preprint
Publication Date
Jul 07, 2014
Submission Date
Jul 07, 2014
Identifiers
DOI: 10.1103/PhysRevE.90.042315
Source
arXiv
License
Yellow
External links

Abstract

In this paper we focus on the mechanical properties of oligomeric glasses (waxes), employing a microscopic model that provides, via numerical simulations, information about the shear modulus of such materials, the failure mechanism via plastic instabilities and about the geometric responses of the oligomers themselves to a mechanical load. We present a microscopic theory that explains the numerically observed phenomena, including an exact theory of the shear modulus and of the plastic instabilities, both local and system spanning. In addition we present a model to explain the geometric changes in the oligomeric chains under increasing strains.

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