1. A 2D dual-scale method to address contact problems
- Author
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Aramfard, Mohammad, PEREZ RAFOLS, Francisco, Nicola, Lucia, and Universitat Politècnica de Catalunya. Departament d'Enginyeria Minera, Industrial i TIC
- Subjects
Contact mechanics ,Enginyeria mecànica [Àrees temàtiques de la UPC] ,Modelització multiescala ,Friction ,Mechanics of Materials ,Mechanical Engineering ,Multiscale modeling, Contact mechanics, Indentation, Friction ,Multiscale modeling ,Indentation ,Fricció ,Surfaces and Interfaces ,Mecànica de contacte ,Surfaces, Coatings and Films - Abstract
A seamless 2D dual-scale computational scheme is developed to study contact problems. The model consists of an atomistic domain close to the contact, coupled with an elastic continuum domain away from the contact. The atomistic formulation provides a description of the contact interaction through interatomic potentials and permits to capture atomic wear and defect formation in the contact region. The fields in the continuum domain are calculated by an efficient FFT-based Green’s function method. The novel scheme is validated against full atomistic simulations and applied to study the effect of adhesion on the scratching of a rough copper surface by a rigid smooth spherical tip.
- Published
- 2022
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