Axisymmetric adhesive contact problem for functionally graded materials coating based on the linear multi-layered model
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[1] University of Technology
University of Technology
Rusia
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[2] Don State Technical University
Don State Technical University
Rusia
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- Localización: Mechanics based design of structures and machines, ISSN 1539-7734, Vol. 49, Nº. 1, 2021, págs. 41-58
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
The contact problem with adhesion for a functionally graded coated halfspace indented by a rigid spherical punch is considered. The whole contact region is stick assuming the interfacial friction sufficient to prevent any slip taking place between the indenter and the coated half-space. The linear multi-layered model is used to model functionally graded materials with arbitrarily varying shear modulus and constant Poisson’s ratio under axisymmetric loads. By using the transfer matrix method and Hankel integral transform technique, the problem is reduced to a set of Cauchy singular integral equations. An iterative method is developed to numerically solve singular integral equations. The contact stress and indentation are calculated for different variations in elastic modulus. It is found that appropriate gradual variation in the shear modulus can improve the resistance to contact damage at the contact surfaces.
