Open Access

ARTICLE

Effects of Loading Conditions on Deformation Process in Indentation

by M. Demiral, A. Roy, V. V. Silberschmidt¹

1 Corresponding author. Tel.:+441509 +44/(0)1509/227504; fax:address: V.Silberschmidt@lboro.ac.uk

Computers, Materials & Continua 2010, 19(2), 199-216. https://doi.org/10.3970/cmc.2010.019.199

Abstract

Static indentation experiments are typically performed to characterize the mechanical properties of a material of interest by a rigid indenter of known geometry to various depths. In contrast, dynamic indentation of materials has not been fully studied. Evaluating material performance under dynamic loading conditions is a challenge and we demonstrate that various modelling schemes may be appropriate for different flavours of dynamic indentation. In order to compare underlying thermo-mechanics and deformation processes in a static and dynamic indentation process, indentation of a rigid indenter into a workpiece to a fixed chosen penetration is extensively studied. A nonlinear strain rate and temperature-sensitive material model is used to characterize the macroscopic response of a titanium-based beta-alloy to indentation.

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Keywords

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