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Determination of shear creep compliance of linear viscoelastic-plastic solids by instrumented indentation

  • Guangjian Peng
  • , Taihua Zhang*
  • , Yihui Feng
  • , Yong Huan
  • *Corresponding author for this work
  • CAS - Institute of Mechanics
  • University of Chinese Academy of Sciences

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents a convenient method which is referred to as "Revised Step-Hold" method for determination of shear creep compliance of linear viscoelastic-plastic solids using instrumented indentation. Its main idea is using the revised load-depth curve which does not contain plastic deformation to determine the shear creep compliance instead of using the measured load-depth curve. The revised load-depth curve can be obtained through a three-step procedure. Applications are illustrated on two typical viscoelastic-plastic solids, namely PMMA and UPVC. The shear creep compliance of PMMA and UPVC determined by the revised step-hold method has satisfactorily good agreement with the corresponding uniaxial tensile result. Therefore, it demonstrates that the revised step-hold method is a reliable method for determination of shear creep compliance of linear viscoelastic-plastic solids.

Original languageEnglish
Pages (from-to)1038-1044
Number of pages7
JournalPolymer Testing
Volume31
Issue number8
DOIs
StatePublished - Dec 2012
Externally publishedYes

Keywords

  • Creep compliance
  • Instrumented indentation
  • PMMA
  • UPVC
  • Viscoelasticity

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