asperity

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asperity

Physics the elastically compressed region of contact between two surfaces caused by the normal force

asperity

[a′sper·ə·dē]
(geology)
A type of surface roughness appearing along the interface of two faults.
References in periodicals archive ?
If the micro pits formed by asperities of uniform roughness are located between rubbing surfaces, they can be filled with lubricant either completely or in part.
4b); spiracles with peritreme, asperities differentiated and closing apparatus adjacent to atrium (Fig.
The adhesion between the nanofibrous membrane and the aluminum foil, and between the aluminum foils, is measured to verify that the adhesive force is due only to the surface asperities in the PCL membrane.
This also acts as a binder that combines with surface debris to form a paste, which then fills any surface asperities in an unsealed asphalt parking lot surface.
The idea is that as the rocks slide past one another, asperities (tiny contact points) on their surfaces are heated by friction.
The shape of the asperities is adequate represented by Rsk and Rku
The polishing pad comprises a polymeric matrix, which has a top polishing surface with polymeric polishing asperities or forming polymeric polishing asperities upon conditioning with an abrasive.
With his frottages, which emphasize the indexical nature of the mark and make use of the support's asperities as it reveals them, Seurat abolished the projective nature of drawing, celebrated as disegno since the Renaissance.
In Equation 22, [eta] represents the surface density of asperities and [beta] the radius of the asperity summit.
To explain these observations, we take a closer look at the colloidal and hydrodynamic interactions in the vicinity of the asperities.
However, the fracture type scratches that occur in the field are thought to be caused by asperities that are one to two orders of magnitude larger than the tip of the nano-scratch tester.
Since the flat surface moves down evenly, all the rectangular asperities are compressed at the same velocity, while the force acting on each rectangle is adjusted accordingly.