搜索结果: 1-13 共查到“理学 Dislocation”相关记录13条 . 查询时间(0.093 秒)
A rate-state model for aftershocks triggered by dislocation on a rectangular fault: a review and new insights
aftershocks earthquake triggering fault parameters rate-and-state Omori law
2015/9/8
We compute the static displacement, stress, strain and the Coulomb failure stress produced in
an elastic medium by a finite size rectangular fault after its dislocation with uniform stress drop
but ...
Luttinger Liquid in the Core of a Screw Dislocation in Helium-4
Monte carlo simulation hexagonal shaft screw crystals superfluids screw dislocation
2014/12/20
On the basis of first-principles Monte Carlo simulations we find that the screw dislocation along the hexagonal axis of an hcp 4He crystal features a superfluid (at T→0) core. This is the first exampl...
Binding of a 3He Impurity to a Screw Dislocation in Solid 4He
Based on simulation the probability density solid atom the nucleus
2014/12/19
Using first-principles simulations for the probability density of finding a 3He atom in the vicinity of the screw dislocation in solid 4He, we determine the binding energy to the dislocation nucleus E...
Molecular-dynamics Simulations of Stacking-fault-induced Dislocation Annihilation in Pre-strained Ultrathin Single-crystalline Copper Films
Molecular dynamics dynamic deformation metal structure
2014/12/19
We report results of large-scale molecular-dynamics (MD) simulations of dynamic deformation under biaxial tensile strain of pre-strained single-crystalline nanometerscale- thick face-centered cubic (f...
A generalized Peierls-Nabarro model for curved dislocations and core structures of dislocation loops in Al and Cu
Dislocation dislocation structures micromechanical modeling Peierls-Nabarro model
2012/8/8
In this paper, we present a generalized Peierls-Nabarro model for curved dislo-
cations. In the generalized Peierls-Nabarro model, the anisotropic elastic energy is
obtained e±ciently by solving the...
Dislocation-mediated growth of bacterial cell walls
Cell wall growth Biophysics Defects Biological Physics
2012/5/29
Recent experiments have illuminated a remarkable growth mechanism of rod-shaped bacteria: proteins associated with cell wall extension move at constant velocity in circles oriented approximately along...
Practical implications of the geometrical sensitivity of elastic dislocation models for field geologic surveys
Subduction zone seismic cycle deformation Sensitivity to plate geometry and slip distribution Coastal uplift and hingeline Elastic subducting plate model Backslip model Geodetic data inversion
2014/4/9
Geodetic observations of both coseismic and interseismic surface deformationfields in the vicinity of subduction zones are frequently interpreted using simple elastic dislocation models (EDMs). The ge...
Entropic Effect on the Rate of Dislocation Nucleation
Entropic Effect the Rate of Dislocation Nucleation
2010/11/18
Dislocation nucleation is essential to our understanding of plastic deformation, ductility and
mechanical strength of crystalline materials. Molecular dynamics simulation has played an important role...
A variational approach to dislocation problems for periodic Schrödinger operators
Schr¨odinger operators eigenvalues spectral gaps
2010/12/8
As a simple model for lattice defects like grain boundaries in solid state physics we consider potentials which are obtained from a periodic potential V = V (x, y) on R2 with period lattice Z2 by sett...
Nucleation blunting or propagation of a nanocrack in dislocation-free zones of thin crystal
2007/7/28
期刊信息
篇名
Nucleation blunting or propagation of a nanocrack in dislocation-free zones of thin crystal
语种
英文
撰写或编译
作者
Q.Z.Chen,W.Y.Chu,Yue Zhang
第一作者单位
刊物名称
Fatigue & Fracture of Enginee
页面
1998,2150
出版...
A two-dimensional dislocation model for interseismic deformation of the Taiwan mountain belt
Taiwan global positioning system strain Chi-Chi crustal deformation Central Range
2014/4/9
We use a Global Positioning System (GPS)-derived surface velocity field of Taiwan for the time period between 1993 and 1999 to infer interseismic slip rates on subsurface faults. We adopt a composite ...
Dislocation formation and albitization in alkali feldspars from the Shap granite
Dislocation formation albitization alkali feldspars Shap granite
2012/4/5
Orthoclase-richalkalifeldsparsintheLowerDevonianShapgranite,northwestEngland,
containtwogenerationsofalbite-richfeldspar.Thesehavepartiallyreplacedearlierexso-
lutionmicrotexturesconsistingofalbitel...
The Relation Between Dislocation Density and Crystal Crosscut in b-Sn Grown by Modified Bridgman Method
Dislocation Density Crystal Crosscut b-Sn Grown
2010/4/19
Crystals b-Sn are grown from ingots of 99.99% purity by modified Bridgman method under 10-3 torr pressure and oriented by Laue back reflection method. The relation between crystal crosscut and disloca...