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Compliance Plot Analysis of Nonlinear Response of PMMA During Nanoindentation

  • R. J. Arenz
  • S.J., Jesuit Community
Conference paper
Part of the Conference Proceedings of the Society for Experimental Mechanics Series book series (CPSEMS)

Abstract

Application of nanoindentation testing to polymeric materials has produced linear viscoelastic properties with the hope of extending results to the nonlinear behavior range. Analysis has indicated that levels of stress well into the nonlinear range are present directly under the indenter. This paper examines how this high stress behavior can be characterized for PMMA material recently tested by nanoindentation. Although stress levels are low compared to many structural materials, a characterization by a compliance plot is made by analogy with the treatment used for metals and other elastic-plastic materials. It illustrates the nature of the stress build-up process during nanonidentation of this polymeric material.

Keywords

Relaxation Modulus Nanoindentation Testing Spherical Indenter Prony Series Linear Viscoelastic Property 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© The Society for Experimental Mechanics, Inc. 2011

Authors and Affiliations

  • R. J. Arenz
    • 1
  • S.J., Jesuit Community
    • 1
  1. 1.Loyola Marymount UniversityLos AngelesUSA

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