Français
8. Glossary
Constriction; constriction
Generally speaking, constriction corresponds to a very localized tightening of an object. The term is used in contact thermics to describe the concentration of flow lines to pass through the small fraction of asperities in contact.
Fractal; fractal
A fractal figure is a mathematical object, such as a curve or surface, whose structure is invariant to changes in scale. Fractals therefore imply the notion of self-similarity.
Peak; peak
Peaks are the prominent points of a profile measured along a generatrix on a surface.
Raideur normale de contact; normal contact stiffness
This is the elasticity induced in the normal direction of contact by the deformability of the asperities.
...
The Ultimate Scientific and Technical Reference
This article is included in
Friction, wear and lubrication
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Glossary
Bibliography
Standards and norms
- referred to as "standard grounds – upper envelope line" - AFNOR NF EN ISO 12085 - (1998-03-01)
- appelée « norme ligne moyenne » - AFNOR NF EN ISO 4287 - (1998-12-01)
Directory
Organizations – Federations – Associations (non-exhaustive list)
Collège français de métrologie (CFM) : http://www.cfmetrologie.com
Laboratories – Design offices – Schools – Research centers (non-exhaustive list)
The Ultimate Scientific and Technical Reference
