Open Access

ARTICLE

The Analytical and Numerical Study on the Nanoindentation of Nonlinear Elastic Materials

by Qiang Zhang, Qing-Sheng Yang¹

1 Beijing University of Technology, Beijing 100124, China. Tel & Fax: 86-10-67396333, Email: qsyang@bjut.edu.cn

Computers, Materials & Continua 2013, 37(2), 123-134. https://doi.org/10.3970/cmc.2013.037.123

Abstract

In nanoindentation testing of materials, the analytical/numerical models to connect the indentation load, indentation depth and material properties are crucial for the extraction of mechanical properties. This paper studied the methods of extracting the mechanical properties of nonlinear elastic materials and built general relationships of the indentation load and depth of hyperelastic materials combined with the dimensional analysis and finite element method (FEM). Compared with the elastic contact models and other nonlinear elastic contact models, the proposed models can extract the mechanical properties of nonlinear elastic materials under large deformation simply and effectively.

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