Elasticity and plasticity in stiff and flexible oligomeric glasses

Oleg Gendelman, H. George E. Hentschel, Pankaj K. Mishra, Itamar Procaccia, Jacques Zylberg, PK Mishra

Research output: Contribution to journalArticlepeer-review

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 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.

Original languageEnglish
Article number042315
JournalPhysical Review B: covering condensed matter and materials physics
Volume90
Issue number4
DOIs
StatePublished - 30 Oct 2014

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

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