Paper Title:
Techniques for Determining Mechanical Properties of Power-Law Materials by Instrumented Indentation Tests
  Abstract

A novel optimization approach is proposed to extract mechanical properties of a power law material from its given experimental nano-indentation P-h curves. A set of equations have been established to relate the P-h curve to mechanical properties, E, σ y and n, of a material. Using the proposed optimization approach, convergence studies were carried out for the determination of the mechanical properties of materials. It was found that the mechanical properties of an elastic-plastic material usually cannot be uniquely determined using a single loading and unloading P-h curve. Thus a technique has also been developed to determine the material properties from indentation p-h curves using indenters with two different angles. This enables the mechanical properties of materials to be uniquely determined.

  Info
Periodical
Key Engineering Materials (Volumes 340-341)
Edited by
N. Ohno and T. Uehara
Pages
555-562
DOI
10.4028/www.scientific.net/KEM.340-341.555
Citation
J. Lin, J. Luo, T. A. Dean, "Techniques for Determining Mechanical Properties of Power-Law Materials by Instrumented Indentation Tests", Key Engineering Materials, Vols. 340-341, pp. 555-562, 2007
Online since
June 2007
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Price
$32.00
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