Results 11 to 20 of about 376,430 (233)

Nanofriction behavior of cluster-assembled carbon films [PDF]

open access: yes, 2002
We have characterized the frictional properties of nanostructured (ns) carbon films grown by Supersonic Cluster Beam Deposition (SCBD) via an Atomic Force-Friction Force Microscope (AFM-FFM). The experimental data are discussed on the basis of a modified
Colombo, L.   +5 more
core   +2 more sources

Sensitivity of centennial mass loss projections of the Amundsen basin to the friction law [PDF]

open access: yesThe Cryosphere, 2019
Reliable projections of ice sheets' future contributions to sea-level rise require models that are able to accurately simulate grounding-line dynamics, starting from initial states consistent with observations.
J. Brondex   +2 more
doaj   +1 more source

Effect of roughness on mean flow properties for turbulent boundary layer

open access: yesNihon Kikai Gakkai ronbunshu, 2016
The roughness sublayer beneath a turbulent boundary layer has been investigated analytically and experimentally, and the effect has been discussed on the mean velocity profile throughout the layer.
Takatsugu KAMEDA   +2 more
doaj   +1 more source

Spontaneous rupture on natural fractures and seismic radiation during hydraulic fracturing treatments

open access: yesGeophysical Research Letters, 2016
We extend spontaneous rupture models in earthquake source studies to analyze fluid injection problems. We perform these analyses on a 2‐D fracture network model with a propagating hydraulic fracture (HF) and three sets of natural fractures (NFs). We find
Benchun Duan
doaj   +1 more source

Variational analysis of a frictional contact problem with wear and damage

open access: yesMathematical Modelling and Analysis, 2021
We study a quasistatic problem describing the contact with friction and wear between a piezoelectric body and a moving foundation. The material is modeled by an electro-viscoelastic constitutive law with long memory and damage.
Mohammed Salah Mesai Aoun   +2 more
doaj   +1 more source

Slip of a one-body dynamical spring-slider model in the presence of slip-weakening friction and viscosity

open access: yesAnnals of Geophysics, 2016
This study is focused on analytic study at small displacements and numerical simulations of slip of a one-body dynamical slider-slider model in the presence of slip-weakening friction and viscosity.
Jeen-Hwa Wang
doaj   +1 more source

Estimation of friction parameters in gravity currents by data assimilation in a model hierarchy [PDF]

open access: yesOcean Science, 2011
This paper is the last in a series of three investigating the friction laws and their parametrisation in idealised gravity currents in a rotating frame.
A. Wirth
doaj   +1 more source

Network-Configurations of Dynamic Friction Patterns

open access: yes, 2012
The complex configurations of dynamic friction patterns-regarding real time contact areas- are transformed into appropriate networks. With this transformation of a system to network space, many properties can be inferred about the structure and dynamics ...
Ghaffari, H. O., Young, R. P.
core   +1 more source

A New Methodology for Determining the Friction Factor

open access: yesMetals
The friction law, which requires that the friction stress is a constant fraction of the local yield shear stress, is widely used for modeling bulk metal forming processes.
Sergei Alexandrov   +5 more
doaj   +1 more source

Artificial Neural Networks Based Friction Law for Elastomeric Materials Applied in Finite Element Sliding Contact Simulations

open access: yesComplexity, 2018
A realistic characterization of the frictional behaviour of materials and mechanical systems is of prime importance for the assessment of their contact interaction properties, especially in the context of undesired temperature rise or intensive wear ...
Aleksandra Serafińska   +2 more
doaj   +1 more source

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