Examining the Effect of Pileup on the Accuracy of Sharp Indentation Testing

Figure 10

Influence of on the calculated elastic modulus. The modulus is normalized by the input of the numerical model. The solid icons stand for the elastic modulus derived from true projected contact areas (6), while the hollow icons represent the modulus derived by Oliver and Pharr model [1]. The solid and dashed lines are linear fitting of solid icons and hollow icons, respectively.