Analysis of the elastic-plastic indentation properties of materials with varying ratio of hardness to Young's modulus
- Author:
Yuan SUN
;
Qingming WANG
- Publication Type:Journal Article
- Keywords:
elastic-plastic indentation properties;
ratio of hardness to Young's modulus;
finite element analysis;
experimental study
- From:
Journal of Pharmaceutical Analysis
2008;20(3):178-182
- CountryChina
- Language:Chinese
-
Abstract:
The elastic-plastic indentation properties of materials with varying ratio of hardness to Young's modulus (H/E) were analyzed with the finite element method. And the indentation stress fields of materials with varying ratio H/E on the surface were studied by the experiment. The results show that the penetration depth, contact radius, plastic pileup and the degree of elastic recovery depend strongly on the ratio H/E. Moreover, graphs were established to describe the relationship between the elastic-plastic indentation parameters and H/E. The established graphs can be used to predict the H/E of materials when compared with experimental data.
