Publication detail

MODELING OF NON-ELASTIC DEFORMATION RESPONSE OF RUBBER NANOCOMPOSITES

ŽÍDEK, J. JANČÁŘ, J.

Original Title

Type

journal article - other

Language

English

Original Abstract

This paper describes modeling of dynamic mechanical properties of heterogenous rubbery material with nanometer size inclusions. Model of calculation loading-unloading tensile curves heterogenous rubbery network was presented. The material was considered a tetrafunctional network of amorphous chains with solid inclusions. The chains in the vicinity of the inclusion were considered immobilized. The dynamic response was modeled as a time dependent of chains slippage in the entanglement. The model was tested by virtual loading-unlading experiment. The sample was deformed with defined deformation rate until double elongation and released back to the zero-stress. Numerical value of dissipated energy density was calculated as a surface delimited by tensile deformation and unloading curves. Heterogenous network showed non-elastic or nonlinearly elastic response. The tensile deformation curves and unloading curves were not aligned and dissipation of the energy during the loading unloading cycle was observed. The non-aligned loading and unloading curves were caused by energy barrier. Increase of energy barrier leaded to slower motion of chain in the entanglement and consequently to elastic response.

Keywords

Inelastic, tensile curve rubber nanocomposites

Authors

ŽÍDEK, J.; JANČÁŘ, J.

RIV year

2009

Released

18. 12. 2009

Location

ISBN

1790-4439

Periodical

Journal of Nanostructured Polymers and Nanocomposites

Year of study

Number

State

Hellenic Republic

Pages from

Pages to

Pages count

BibTex

@article{BUT50491,
  author="Jan {Žídek} and Josef {Jančář}",
  title="MODELING OF NON-ELASTIC DEFORMATION RESPONSE OF RUBBER NANOCOMPOSITES",
  journal="Journal of Nanostructured Polymers and Nanocomposites",
  year="2009",
  volume="5",
  number="4",
  pages="89--93",
  issn="1790-4439"
}