A Comparison of 3D Finite Element Simulations for Berkovich and Conical Indentation of Fused Silica

doi:10.1504/IJSURFSE.2007.015028

Title: A Comparison of 3D Finite Element Simulations for Berkovich and Conical Indentation of Fused Silica

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Abstract

Much of our understanding of elastic-plastic contact mechanics as it relates to the interpretation of nanoindentation data comes from two-dimensional, axisymmetric finite element simulations of conical indentation. In many instances, conical results adequately describe real experimental results; however, there are instances where conical simulations fail to capture important behavior. Three-dimensional finite element simulations of Berkovich triangular pyramidal indentation of fused silica are compared to similar simulations with a 70.3{sup o} cone. It is shown that a potentially significant difference between the two indenters exists for the contact areas and contact stiffnesses. Implications for the interpretation of nanoindentation data are discussed.

Authors:

Shim, Sang Hoon ^[1]; Oliver, Warren C. ^[2]; Pharr, George Mathews ^[1]

ORNL
MTS Nanoinstruments Innovation Center, Oak Ridge

Publication Date:: Mon Jan 01 00:00:00 EST 2007

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Shared Research Equipment Collaborative Research Center

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 935723

DOE Contract Number:: DE-AC05-00OR22725

Resource Type:: Journal Article

Resource Relation:: Journal Name: International Journal of Surface Science and Engineering; Journal Volume: 1; Journal Issue: 2-3

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; SILICA; THREE-DIMENSIONAL CALCULATIONS; FINITE ELEMENT METHOD; ELASTICITY; PLASTICITY; CONICAL CONFIGURATION

Citation Formats


                    Shim, Sang Hoon, Oliver, Warren C., and Pharr, George Mathews. A Comparison of 3D Finite Element Simulations for Berkovich and Conical Indentation of Fused Silica.  United States: N. p., 2007. 
        Web.  doi:10.1504/IJSURFSE.2007.015028.

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                    Shim, Sang Hoon, Oliver, Warren C., & Pharr, George Mathews. A Comparison of 3D Finite Element Simulations for Berkovich and Conical Indentation of Fused Silica.  United States.  doi:10.1504/IJSURFSE.2007.015028.

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                    Shim, Sang Hoon, Oliver, Warren C., and Pharr, George Mathews. Mon .  
        "A Comparison of 3D Finite Element Simulations for Berkovich and Conical Indentation of Fused Silica".  United States.  
        doi:10.1504/IJSURFSE.2007.015028.

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@article{osti_935723,

  title        = {A Comparison of 3D Finite Element Simulations for Berkovich and Conical Indentation of Fused Silica},

  author       = {Shim, Sang Hoon and Oliver, Warren C. and Pharr, George Mathews},

  abstractNote = {Much of our understanding of elastic-plastic contact mechanics as it relates to the interpretation of nanoindentation data comes from two-dimensional, axisymmetric finite element simulations of conical indentation. In many instances, conical results adequately describe real experimental results; however, there are instances where conical simulations fail to capture important behavior. Three-dimensional finite element simulations of Berkovich triangular pyramidal indentation of fused silica are compared to similar simulations with a 70.3{sup o} cone. It is shown that a potentially significant difference between the two indenters exists for the contact areas and contact stiffnesses. Implications for the interpretation of nanoindentation data are discussed.},

  doi          = {10.1504/IJSURFSE.2007.015028},

  journal      = {International Journal of Surface Science and Engineering},

  number       = 2-3,

  volume       = 1,

  place        = {United States},

  year         = {Mon Jan 01 00:00:00 EST 2007},

  month        = {Mon Jan 01 00:00:00 EST 2007}

}

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DOI: 10.1504/IJSURFSE.2007.015028

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