Experimental investigations of the Sneddon solution and an improved solution for the analysis of nanoindentation data

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Description

The Sneddon solution, as it is implemented in the Oliver-Pharr method, deviates from the indentation experimental data in a manner which depends on both the indenter angle and the Poisson ratio of the sample. These effects are demonstrated experimentally by performing indentations in tungsten and aluminum using a cube-cube corner indenter where the effect are exacerbated by the small indenter angle. The first objective was to experimentally support and validate an approximate analytical solution in conjunction with finite element simulations which illustrate the Poisson ratio and indenter angle effects. Second, a review of data analysis procedures is presented which leads ... continued below

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7 p.

Creation Information

Hay, J. C. & Pharr, G. M. November 1998.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 16 times . More information about this report can be viewed below.

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  • Hay, J. C. IBM Research, Yorktown Heights, NY (United States). T.J. Watson Research Center
  • Pharr, G. M. Rice Univ., Houston, TX (United States). Dept. of Materials Science

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Description

The Sneddon solution, as it is implemented in the Oliver-Pharr method, deviates from the indentation experimental data in a manner which depends on both the indenter angle and the Poisson ratio of the sample. These effects are demonstrated experimentally by performing indentations in tungsten and aluminum using a cube-cube corner indenter where the effect are exacerbated by the small indenter angle. The first objective was to experimentally support and validate an approximate analytical solution in conjunction with finite element simulations which illustrate the Poisson ratio and indenter angle effects. Second, a review of data analysis procedures is presented which leads to a better understanding of the systematic errors which percolate through in the measurement of Young`s modulus and hardness.

Physical Description

7 p.

Notes

OSTI as DE99000375

Source

  • Spring national meeting of the American Chemical Society, San Francisco, CA (United States), 13-17 Apr 1998

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Identifier

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  • Other: DE99000375
  • Report No.: ORNL/CP--98988
  • Report No.: CONF-980402--
  • Grant Number: AC05-96OR22464;AC05-76OR00033
  • DOI: 10.2172/677105 | External Link
  • Office of Scientific & Technical Information Report Number: 677105
  • Archival Resource Key: ark:/67531/metadc711317

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Creation Date

  • November 1998

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  • Sept. 12, 2015, 6:31 a.m.

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  • April 19, 2016, 1:41 p.m.

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Hay, J. C. & Pharr, G. M. Experimental investigations of the Sneddon solution and an improved solution for the analysis of nanoindentation data, report, November 1998; Tennessee. (digital.library.unt.edu/ark:/67531/metadc711317/: accessed August 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.