Computational modeling of the forward and reverse problems in instrumented sharp indentation

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Thin Film Materials: Stress, Defect Formation and Surface Evolution (2004, methodology): “where E∗ is the reduced elastic modulus of the indenter{material system, E and o represent, as before, the elastic modulus and Poisson ratio, respectively, with the subscripts `s' and `in' denoting the specimen and the indenter, respectively, Ac is the projected contact area of the impression produc”
A numerical approach to spherical indentation techniques for material property evaluation (2005, methodology): “In other words, two different materials can have same C, the coefficient of Kick’s law (Dao et al., 2001) P 1⁄4 Ch2t .”
In Situ Single Cell Mechanics Characterization of Yeast Cells Using Nanoneedles Inside Environmental SEM (2008, background): “However, it has been shown that the error using the models for a nonbody of revolution is very small, as explained in detailed in [23]–[25]”
Comparison between Berkovich, Vickers and conical indentation tests: A three-dimensional numerical simulation study (2009, methodology): “For example, based on numerical simulation results, Dao et al. (2001) propose values for the b correction factor of to 1.096, 1.072 and 1.060 for the Berkovich, Vickers and conical indenters, respectively.”