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Contact laws are equations that describe what happens at the contact interface when two solids in the considered system touch. They are special boundary conditions that are added in addition to the standard ones, and which are essential when trying to solve a contact problem. The simplest contact laws in the literature that are frequently used are the adhesion‐free normal contact law and Coulomb's dry friction tangential contact law. This chapter discusses nonadhesive normal contact law and Coulomb's dry friction tangential contact law. Despite their simple physical nature, these laws are mathematically complicated: they are not regular as they are multivalued and are given by non‐differentiable equation. In addition to the normal contact law, one needs a tangential contact law to take into account the friction at the interface of the two bodies. The Coulomb model involves a material coefficient, called the coefficient of friction, which is assumed to be constant throughout time and space.
Contact laws are equations that describe what happens at the contact interface when two solids in the considered system touch. They are special boundary conditions that are added in addition to the standard ones, and which are essential when trying to solve a contact problem. The simplest contact laws in the literature that are frequently used are the adhesion‐free normal contact law and Coulomb's dry friction tangential contact law. This chapter discusses nonadhesive normal contact law and Coulomb's dry friction tangential contact law. Despite their simple physical nature, these laws are mathematically complicated: they are not regular as they are multivalued and are given by non‐differentiable equation. In addition to the normal contact law, one needs a tangential contact law to take into account the friction at the interface of the two bodies. The Coulomb model involves a material coefficient, called the coefficient of friction, which is assumed to be constant throughout time and space.
Contact Laws
Le van, Anh (author)
Contact in Structural Mechanics ; 45-50
2024-06-18
6 pages
Article/Chapter (Book)
Electronic Resource
English
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