Frictional contact analysis of coated axisymmetric bodies using the boundary element method

This paper presents a boundary element analysis of the contact mechanics between elastic indenters and other compliant structures with hard coatings of different properties and thicknesses. Two types of indenter are considered: spherical and conical. The first produces a non-linear contact problem w...

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Bibliographic Details
Published in:Journal of strain analysis for engineering design 2000-07, Vol.35 (5), p.423-440
Main Authors: de Lacerda, L. A, Wrobel, L. C
Format: Article
Language:English
Subjects:
Applied sciences
Axisymmetric bodies
Boundary element method
Boundary-integral methods
Computational techniques
Contact of materials. Friction. Wear
Elastic properties
Exact sciences and technology
Finite element method
Finite-element and galerkin methods
Indenters
Iterative methods
Mathematical analysis
Mathematical methods in physics
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Modulus of elasticity
Nonlinear programming
Physics
Ultrasonic testing
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Summary:This paper presents a boundary element analysis of the contact mechanics between elastic indenters and other compliant structures with hard coatings of different properties and thicknesses. Two types of indenter are considered: spherical and conical. The first produces a non-linear contact problem while the latter, used in the soft impresser hardness-testing technique, has a flat tip which results in a conformal type of contact. Frictional conditions are introduced and partial slip phenomena observed. The relevance of friction is verified in all cases. An efficient iterative axisymmetric boundary element formulation has been developed for this purpose, which incorporates features such as subregion modelling and a fast solution procedure. Results with the two types of indenter are compared with available analytical expressions and a commercial finite element package.
ISSN:0309-3247
2041-3130
DOI:10.1243/0309324001514198