Interdisciplinary asperity theory to analyze nonlinear motion of loess landslides with weak sliding interface
Sign Up to like & getrecommendations! Published in 2020 at "Landslides"
DOI: 10.1007/s10346-020-01479-3
Abstract: While research into landslide disasters is relatively extensive and in-depth, the false alarm rate is still high. Previous research has indicated similar mechanical problems between the seismic faults and the sliding interface of landslides. Here,… read more here.
Keywords: landslide; sliding interface; asperity; interface ... See more keywords
Frictional properties of multi-asperity surfaces at the nanoscale
Sign Up to like & getrecommendations! Published in 2017 at "Computational Materials Science"
DOI: 10.1016/j.commatsci.2017.05.001
Abstract: Abstract Asperities are considered as unevenness of surfaces, or surface roughness. Surfaces that are finely polished are still considered uneven at the nanoscale. This unevenness of surface reduces the actual contact area when two surfaces… read more here.
Keywords: frictional properties; multi asperity; asperity; surface ... See more keywords
Correlation between shear induced asperity degradation and acoustic emission energy in single granite fracture
Sign Up to like & getrecommendations! Published in 2020 at "Engineering Fracture Mechanics"
DOI: 10.1016/j.engfracmech.2020.107184
Abstract: Abstract Shear induced asperity degradation and gouge formation significantly affect the mechanical and fluid flow behaviors of single rough fractures, but the asperity damage process during shear has not been entirely understood and requires further… read more here.
Keywords: induced asperity; energy; asperity; shear induced ... See more keywords
Asperity degradation characteristics of soft rock-like fractures under shearing based on acoustic emission monitoring
Sign Up to like & getrecommendations! Published in 2020 at "Engineering Geology"
DOI: 10.1016/j.enggeo.2019.105392
Abstract: Abstract Shear failure of rock masses along pre-existing discontinuities is one of the predominant failure modes of rock slopes and underground tunnels. The monitoring and prediction of the impending shear failure is of great significance… read more here.
Keywords: degradation; asperity; shear stress; stress ... See more keywords
Adhesive wear law at the single asperity level
Sign Up to like & getrecommendations! Published in 2020 at "Journal of The Mechanics and Physics of Solids"
DOI: 10.1016/j.jmps.2020.104069
Abstract: Abstract Macroscopic wear experiments in mid 1950s suggested an empirical wear relation: wear volume is linearly proportional to load and sliding distance. Recent asperity-level wear experiments and simulations reported a breakdown of this law at… read more here.
Keywords: adhesive wear; asperity; law; asperity level ... See more keywords
Effect of rock joint roughness on its cyclic shear behavior
Sign Up to like & getrecommendations! Published in 2017 at "Journal of rock mechanics and geotechnical engineering"
DOI: 10.1016/j.jrmge.2017.09.001
Abstract: Abstract Rock joints are often subjected to dynamic loads induced by earthquake and blasting during mining and rock cutting. Hence, cyclic shear load can be induced along the joints and it is important to evaluate… read more here.
Keywords: rock joints; asperity; rock joint; rock ... See more keywords
Modeling the wear process of the ring/liner conjunction considering the evaluation of asperity height distribution
Sign Up to like & getrecommendations! Published in 2017 at "Tribology International"
DOI: 10.1016/j.triboint.2017.03.025
Abstract: Abstract This paper presents a combined mixed lubrication and wear model to study the running-in process of the ring/liner system. In this model, the elastic-plastic asperity deformation is considered, as well as the evolution of… read more here.
Keywords: height distribution; process ring; asperity height; asperity ... See more keywords
Contact fatigue initiation and tensile surface stresses at a point asperity which passes an elastohydrodynamic contact
Sign Up to like & getrecommendations! Published in 2017 at "Tribology International"
DOI: 10.1016/j.triboint.2017.10.013
Abstract: Abstract Contact mechanics and tribology was combined with fundamental fatigue and fracture mechanics to form a new mechanism for surface initiated rolling contact fatigue. Following, fatigue was investigated numerically for single asperities and craters in… read more here.
Keywords: asperity; fatigue; tribology; surface ... See more keywords
Tracing single asperity wear in relation to macroscale friction during running-in
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DOI: 10.1016/j.triboint.2021.107108
Abstract: Abstract The running-in wear of a multi-asperity silicon carbide sphere-on-silicon flat interface is investigated at the micro- and nanoscale in relation to the friction behaviour of an unlubricated macroscale tribological system sliding in a unidirectional… read more here.
Keywords: macroscale friction; asperity; friction; friction behaviour ... See more keywords
Theoretical Analysis of the Influence of Asperity’s Dimensions Affected by a Scale Factor on the Mixed Lubrication between Parallel Surfaces
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DOI: 10.1155/2018/3702324
Abstract: Mixed lubrication between a given pair of surfaces is directly related to the parameter . Any change in microgeometry produces a shift in the transition between the boundary and lubricated regimes. Using an asperity based… read more here.
Keywords: lubrication; microgeometry; asperity; theoretical analysis ... See more keywords
The shear characteristic and failure mechanism study of infilled rock joints with constant normal load
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Vibroengineering"
DOI: 10.21595/jve.2018.20055
Abstract: In order to evaluate the shear deformation characteristics, the direct shear tests for the rock-like specimens with regular sawtooth were carried out in the laboratory. The different asperity angles and different normal stress conditions were… read more here.
Keywords: asperity; characteristic failure; failure; asperity angle ... See more keywords