The use of nanoindentation for determining internal lengths and the constitutive response of monument materials: models and experiments

Abstract

An alternative interpretation of nanoindentation experimental data and the associated phenomenon of indentation size effect (ISE) is proposed on the basis of a simple gradient elasticity equation, used to account for the development of elastic gradients generated by the geometry characterizing the indenter-specimen system. An application is considered for marble, i.e. a construction/restoration material.

Keywords

• gradient elasticity
• internal length
• nanoindentation