Mechanics of Composite Materials

, Volume 31, Issue 5, pp 423–426 | Cite as

Experimental study of the contribution of interfacial friction to the deformation resistance of particle-reinforced polymers

  • V. V. Moshev
  • V. N. Kovrov


A study has been made of the dissipative properties of heavily filled elastomers as influenced by friction of the elastic matrix on the surface of the solid filler particles. In order to model the frictional surface, specimens were predamaged by cyclic deformation, with strain amplitudes sufficient to cause separation of the matrix from the filler. The predeformation operation was performed by means of a mechanical system having individual particle-matrix bonds, so that it was possible to evaluate the contribution of interfacial friction to the resistance of the polymer. When external pressure was applied to the specimens, the width of the hysteresis loop increased with increasing pressure, obviously reflecting an increase of the surface friction in the matrix. It was established that for a given volumetric fill, the dissipation of mechanical energy increased with decreasing particle size (with increasing frictional surface area). The significant influence of interfacial friction on the level and rate of strain relaxation was demonstrated experimentally.


Polymer Particle Size Significant Influence Hysteresis Loop Mechanical System 
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Copyright information

© Plenum Publishing Corporation 1996

Authors and Affiliations

  • V. V. Moshev
    • 1
  • V. N. Kovrov
    • 1
  1. 1.Institute of Continuum MechanicsUral Branch of the Russian Academy of SciencesUSSR

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