Abstract
A procedure of an evaluation of elastoplastic properties of materials, which is based on the comparison of the nanoindentation data with the results of the numerical modeling of a contact interaction in the indenter-sample system, has been proposed. As has been shown by testing, the model works satisfactory both for amorphous materials and for metals (annealed and strain-strengthened) on the micro- and submicron levels. Its applicability to modeling the nanoindentation process of materials with a distinct size effect has been found to require further allowing for factors, which are important for the given scale level. These factors include the indenter shape and degree of bluntness, the effect of the strain gradient and grain boundaries on the dislocation mobility and strength yield of a material at the nanolevel.
Published Version
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