Numerical Model of Instrumented Indentation by a Rounded Cone Indenter Using Finite Element Method

Lenka Kocmanová; Petr Haušild; Aleš Materna; Jiří Matějíček

doi:10.4028/www.scientific.net/KEM.606.73

Paper Titles

Densification as the Only Mechanism at Stake during Indentation of Silica Glass?
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Energy Aspects of Concentrated Contact and Instrumented Indentation
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A Numerical Study of the Effect of the Berkovich Indenter Orientation on the Elastic Response of Anisotropic Material
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Constant Load Testing of Materials Using Nanoindentation Technique
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Numerical Model of Instrumented Indentation by a Rounded Cone Indenter Using Finite Element Method
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Influence of Drill Wear to Local Plastic Deformation in the Wall of Drilling Hole
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Effect of Pile-Up on the Mechanical Characteristics of Steel by Depth Sensing Indentation
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In Situ Detection of Surface Micro-Cracking in Ultrafine-Grained AZ31 Magnesium Alloy by Resonant Ultrasound Spectroscopy
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Effect of Grit-Blasting on Residual Stress Field
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 606Numerical Model of Instrumented Indentation by a...

Numerical Model of Instrumented Indentation by a Rounded Cone Indenter Using Finite Element Method

Abstract:

The paper serves as an introduction to investigation of mechanical properties of functionally graded materials and deals with elastic nanoindentation numerical models. The models were based on the finite element method. Young's moduli were estimated by Oliver-Pharr method. The indenter geometry for which numerical solutions were accomplished was a rounded cone indenter. The effect of tip sharpness was examined by applying an increasing spherical tip radius. The results show that the apparent Young's modulus and the hardness increase linearly with increasing radius of the tip. The effect of approaching interface between two elastic materials on the apparent hardness and indentation modulus was identified in 3D model. The specimen consisted of two materials. First, the interface was linear and parallel to the direction of indentation, so that the Young's modulus changed suddenly. Second, the Young's modulus was continuously changing. The dependence on various boundary conditions of the specimen was also considered.

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Periodical:

Key Engineering Materials (Volume 606)

Pages:

73-76

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.606.73

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Online since:

March 2014

Authors:

Lenka Kocmanová, Petr Haušild, Aleš Materna, Jiří Matějíček

Keywords:

Finite Element Method (FEM), Functionally Graded Material (FGM), Nanoindentation

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References

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