Abstract
Based on dimensional analysis, we analysed the indentation of a rigid indenter into a power-law creep solid for which the relationship between the stress and the strain rate is given by \(\sigma=b\dot{\varepsilon}^{n}\) . It is shown that under a described condition the creep exponent n can be determined without invoking the detail knowledge of the indenter profile and the shape of the indented solid. The result reported herein should be useful for interpreting the data of nanoindentation into a power-law creep solid in the case that the indented solid is not a flat half-space and/or the indenter has tip defects. The performance of the simple method to evaluate the creep exponent is examined by using numerical experiments and its limitations also discussed.
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An erratum to this article can be found at http://dx.doi.org/10.1007/s11043-007-9039-0
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Cao, Y. Determination of the creep exponent of a power-law creep solid using indentation tests. Mech Time-Depend Mater 11, 159–172 (2007). https://doi.org/10.1007/s11043-007-9033-6
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DOI: https://doi.org/10.1007/s11043-007-9033-6