Nanoindentation is a very efficient tool to measure local mechanical properties of materials. In general in homogeneous materials the mechanical properties can be extracted from the force-indentation depth curve using Hertz’s contact solution. In the presence of an interface separating materials with different mechanical properties as for example in composite materials, Hertz’s solution is no longer valid. This tool calculates the indentation depth versus applied force for a spherical indenter in the proximity of an interface.

fortran code designed by Koslowski M.

This work was funded by The Boeing Company and the US National Science Foundation (NSF) under contract CMMI- 0826356

1) Landau, L.D. and Lifshitz, E. M. Course of Theoretical Physics. Vol 7: Theory of Elasticity, Elsevier (1986) 2) Popov, An exact solution of the mixed elasticity problem in a quarter-space. Mech. Solids 38, 23 (2003). 3) Zhao, Y. and Ovaert, T. C., Error estimation of nanoindentation mechanical properties near a dissimilar interface via finite element analysis and analytical solution methods, J. Mater. Res., Vol. 25, 12 (2010).

Researchers should cite this work as follows:

• Alvian Siswoyo; Marisol Koslowski (2011), "Nanoindentation close to an interface," https://nanohub.org/resources/nanoin. (DOI: 10.4231/D3K649S6X).

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1. nano/bio
2. Nanocomposites and Forest products
3. Nanoindentation