Influence of modulus‐to‐hardness ratio and harmonic parameters on continuous stiffness measurement during nanoindentation
October 1-6, 2017
Dynamic nanoindentation is a popular method for continuously probing the mechanical properties of a sample as a function of depth. Its operation principle and main applications will be reviewed at first. Then, it will be shown that special caution should be exercised when testing materials with high modulus-to-hardness ratios (E/H) at fast loading rates, as the choice of harmonic parameters can result in a significant underestimation of the contact stiffness and hence the elastic modulus.
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Benoit Merle, Verena Maier-Kiener, and George M. Pharr, "Influence of modulus‐to‐hardness ratio and harmonic parameters on continuous stiffness measurement during nanoindentation" in "Nanomechanical Testing in Materials Research and Development VI", Karsten Durst, Technical University of Darmstadt, Germany Eds, ECI Symposium Series, (2017). http://dc.engconfintl.org/nanomechtest_vi/1