A numerical and experimental study of the indentation mechanics of plasticine

Z. Huang, M Lucas, MJ Adams

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    16 Citations (Scopus)

    Abstract

    This paper describes an experimental and analytical study of contact compliance data for deriving material properties of the model elastoviscoplastic material, plasticine, from spherical and conical indentation measurements. An analytical model is employed to determine the material characteristics such as elastic modulus and yield stress from the experimental data. It is based on the Box-Cox transformation for minimizing the influence of the error inherent in compliance methods. The material characteristics deduced for plasticine are shown to be consistent with the values reported for compression tests of this material. Moreover, for the elastic modulus, yield stress, plastic flow consistency, plastic flow index and load-depth relationship, a close correlation was obtained between a finite element simulation of the indentation process and the experimental data.

    Original languageEnglish
    Pages (from-to)141-150
    Number of pages10
    JournalJournal of Strain Analysis for Engineering Design
    Volume37
    Issue number2
    Publication statusPublished - 2002

    Keywords

    • elastic modulus
    • plastic flow consistency
    • analytical procedure
    • plastic flow index
    • axisymmetric indentation
    • DEFORMATION
    • finite element simulation
    • hardness

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