Results 221 to 230 of about 240,296 (261)
Some of the next articles are maybe not open access.
Journal of Applied Mathematics and Mechanics, 1980
Abstract There is considered an infinite elastic plane with a symmetric crack that can be mapped into a circle by a rational function. It is assumed that opposite edges of the crack come into contact because of loading at infinity. it is also assumed that the vertical displacement component is known on the crack contour in the contact range; there is
Pen'kov, V. B., Tolokonnikov, L. A.
openaire +1 more source
Abstract There is considered an infinite elastic plane with a symmetric crack that can be mapped into a circle by a rational function. It is assumed that opposite edges of the crack come into contact because of loading at infinity. it is also assumed that the vertical displacement component is known on the crack contour in the contact range; there is
Pen'kov, V. B., Tolokonnikov, L. A.
openaire +1 more source
Contact and edge effects in graphene devices
Nature Nanotechnology, 2008Electrical transport studies on graphene have been focused mainly on the linear dispersion region around the Fermi level and, in particular, on the effects associated with the quasiparticles in graphene behaving as relativistic particles known as Dirac fermions. However, some theoretical work has suggested that several features of electron transport in
Lee, E. +4 more
openaire +3 more sources
Minimum Contact Resistance in Monoelemental 2D Material Nanodevices With Edge-Contacts
IEEE Electron Device Letters, 2021We use atomistic quantum transport device simulations to investigate the contact resistance (RC) in monoelemental 2D material nanoribbon MOSFETs with edge contacts. The consequences of attaching metal electrodes to source/drain regions are investigated for various metal-channel interaction strengths and nanoribbon dimensions.
Mirko Poljak, Mislav Matic, Ante Zeljko
openaire +2 more sources
Modeling Contact Resistivity in Monolayer Molybdenum disulfide Edge contacts
2021 International Conference on Simulation of Semiconductor Processes and Devices (SISPAD), 2021We calculate the resistivity of Schottky edge contacts between a metal and a transition-metal dichalcogenide (TMD) thin layer. The electrostatic potential is obtained by solving numerically the Poisson equation; the transmission probability is computed using the Wentzel–Kramers–Brillouin (WKB) approximation using the full-band density of states ...
Madhuchhanda Brahma +4 more
openaire +1 more source
Contact modelling in the vicinity of an edge
Surface and Coatings Technology, 2001In this paper the problem of a spherical contact in the vicinity of an edge will be considered by analytical modelling and nanoindentation experiments. This problem attracts interest because of the increasing use of nanoindentation as a tool for the investigation of mechanical property profiles of cross-sectioned samples.
N. Schwarzer +3 more
openaire +1 more source
Role of Edge Contact in the Provision of Contact Strength of Gears
Metal Science and Heat Treatment, 2002Experimental studies and operational data show that the contact strength of heat-treated involute gears in gear sets is limited by edge scoring. Edge scoring and edge contact are a consequence of the mesh interference as a result of the deformation of the teeth under load and of mesh errors.
É. L. Airapetov +4 more
openaire +1 more source
Analysis of edge effects on rail—wheel contact
Wear, 1990Abstract This study considers the contact occurring in rail-wheel systems. Here the edge effect of the gauge face of the rail on the contact stress and contact geometry is investigated. The rail head is modeled as a three-dimensional elastic wedge which may have an arbitrary wedge angle.
M.T. Hanson, L.M. Keer
openaire +1 more source
Contact Edge Roughness: Characterization and modeling
Microelectronic Engineering, 2011In this paper, first we clarify the differences between Contact Edge Roughness (CER) and Line Edge Roughness (LER) emanating from the circular form of the contact edge. Then, we investigate the effects of these differences on the characterization of the spatial and frequency aspects of CER: We define the height-height correlation function for a ...
V Constantoudis, Evangelos Gogolides
exaly +2 more sources
Cold Regions Science and Technology, 1992
Abstract A model of ice loads and failure during ice-structure contact is proposed. The model is shown to be in good agreement with measured ice load data. The causes of variability and randomness in ice loads are addressed. Chaos theory is employed to analyze the behavior of the iterative sequence of cracks in the model.
openaire +1 more source
Abstract A model of ice loads and failure during ice-structure contact is proposed. The model is shown to be in good agreement with measured ice load data. The causes of variability and randomness in ice loads are addressed. Chaos theory is employed to analyze the behavior of the iterative sequence of cracks in the model.
openaire +1 more source