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Contact Mechanics

Contact Analyses for Anisotropic Half Space: Effect of the Anisotropy on the Pressure Distribution and Contact Area

[+] Author and Article Information
Caroline Bagault, Daniel Nélias, Marie-Christine Baietto

Université de Lyon, CNRS, INSA-Lyon,  LaMCoS UMR5259, Villeurbanne, F69621 France

J. Tribol 134(3), 031401 (Jun 18, 2012) (8 pages) doi:10.1115/1.4006747 History: Received January 21, 2012; Revised April 19, 2012; Published June 18, 2012; Online June 18, 2012

A contact model using semi-analytical methods, relying on elementary analytical solutions, has been developed. It is based on numerical techniques adapted to contact mechanics, with strong potential for inelastic, inhomogeneous or anisotropic materials. Recent developments aim to quantify displacements and stresses of an anisotropic material contacting both an isotropic or anisotropic material. The influence of symmetry axes on the contact solution will be more specifically analyzed.

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Copyright © 2012 by American Society of Mechanical Engineers
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Figures

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Figure 1

Pressure profile for an isotropic case

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Figure 2

Finite element model with a detailed view of the contact area

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Figure 3

Pressure profile for an orthotropic material

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Figure 4

Influence of E1 on the contact pressure

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Figure 5

Influence of E1 on the contact area

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Figure 6

Influence of E3 on the contact pressure

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Figure 7

Influence of E1 on the maximum pressure

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Figure 8

Influence of E3 on the maximum pressure

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Figure 9

Influence of the material’s orientation on the contact pressure (for θm=0°, E3/E2=3)

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Figure 10

Influence of the material’s orientation on the maximum pressure (Caption is valid for θm=0 deg)

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Figure 11

Influence of the Poisson’s ratio on the contact area

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Figure 12

Influence of the Coulomb’s modulus on the contact area

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Figure 13

Influence of the Young’s modulus along axis 1 (parallel to the surface) on the indentation curve

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Figure 14

Influence of the Young’s modulus along axis 3 (normal to the surface) on the indentation curve

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