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6 giorni fa · The study of micro- and nano-tribology serves as a crucial link between fundamental science and engineering, enhancing our comprehension of interfacial behaviors across different length scales. While tribology is not a novel field, developing specific approaches for polymer-based materials (PBMs) is essential to understand their unique ...
7 mag 2024 · The normalized surface roughness (Rn) and the asperity ratio (AR) are used as indexes for surface roughness. Rn is the ratio between average asperity height and D50 of a soil, AR is the ratio of the half spacing between two adjacent asperities and D50.
22 mag 2024 · In this paper, a mixed lubrication contact stiffness model considering asperity interactions is proposed, which assumes the lubrication rough interface as an equivalent thin layer. The proposed model was compared with the lubrication contact model that does not consider the asperity interactions.
23 mag 2024 · “For the simplest example of frictionless, dry, elastic contact, while the contact patch might spread over millimeters, individual asperities [rough areas] might be contacting on a micrometer length scale. Because of that, we need to discretize the relatively large contact into very small points.
2 giorni fa · However, these studies generally neglected the role of the fracture asperities on the fracture flow during elastic closure of the fracture while deriving such roughness-permeability correlations. For example, the flow behavior of relatively small-scale fractures is strongly affected by local large asperities, which might be negligible for relatively large-scale fractures.
9 mag 2024 · The positional consistency between the two main asperities and fault bends/stepovers indicates that during seismic events before the 2023 Mw 7.9 earthquake, rupture propagation stopped at the ...
6 mag 2024 · Modeling Asperities with Spaghetti. This activity uses a physical model to facilitate students' understanding of elastic deformation of rocks and the episodic nature of motion on a fault, which leads to earthquakes and aftershocks. Used this activity? Share your experiences and modifications.
