Results 81 to 90 of about 8,007,372 (244)

A phase-field model for fractures in incompressible solids

open access: yes, 2019
Within this work, we develop a phase-field description for simulating fractures in incompressible materials. Standard formulations are subject to volume-locking when the solid is (nearly) incompressible. We propose an approach that builds on a mixed form
Mang, Katrin   +2 more
core   +1 more source

Sharp-interface limits of a phase-field model with a generalized Navier slip boundary condition for moving contact lines [PDF]

open access: yesJournal of Fluid Mechanics, 2017
The sharp-interface limits of a phase-field model with a generalized Navier slip boundary condition for binary fluids with moving contact lines are studied by asymptotic analysis and numerical simulations.
Xianmin Xu, Yana Di, Haijun Yu
semanticscholar   +1 more source

A phase field model for liquid-vapour phase transitions

open access: yesDiscrete & Continuous Dynamical Systems - S, 2013
15 pages, 4 ...
V. Berti, M. Fabrizio, GRANDI, Diego
openaire   +3 more sources

Amplitude expansion of the binary phase field crystal model

open access: yes, 2009
Amplitude representations of a binary phase field crystal model are developed for a two dimensional triangular lattice and three dimensional BCC and FCC crystal structures.
K. A. Jackson   +7 more
core   +1 more source

A Comparative Study of Multiphase Lattice Boltzmann Methods for Bubble-Dendrite Interaction during Solidification of Alloys

open access: yesApplied Sciences, 2018
This paper presents a comparative study between the pseudopotential Shan-Chen model and the phase field multiphase lattice Boltzmann method for simulating bubble dynamics during dendritic solidification of binary alloys.
Seyed Amin Nabavizadeh   +2 more
doaj   +1 more source

Phase-field-crystal model for ordered crystals

open access: yesPhysical Review E, 2017
We describe a general method to model multicomponent ordered crystals using the phase-field crystal (PFC) formalism. As a test case, a generic B2 compound is investigated. We are able to produce a line of either first-order or second-order order-disorder phase transitions, features that have not been incorporated in existing PFC approaches. Further, it
Alster, Eli   +3 more
openaire   +4 more sources

Quantum Phase Transitions in the Ising model in spatially modulated field

open access: yes, 2000
The phase transitions in the transverse field Ising model in a competing spatially modulated (periodic and oscillatory) longitudinal field are studied numerically.
A. Aharony   +11 more
core   +1 more source

Phase field analysis of eutectic breakdown. [PDF]

open access: yes, 2006
In this paper an isotropic multi-phase-field model is extended to include the effects of anisotropy and the spontaneous nucleation of an absent phase. This model is derived and compared against a published single phase model.
A. Wheeler   +14 more
core   +3 more sources

Random field Ising model: dimensional reduction or spin-glass phase? [PDF]

open access: yes, 1995
The stability of the random field Ising model (RFIM) against spin glass (SG) fluctuations, as investigated by M\'ezard and Young, is naturally expressed via Legendre transforms, stability being then associated with the non-negativeness of eigenvalues of ...
De Dominicis, C.   +2 more
core   +2 more sources

A phase field model of pressure-assisted sintering

open access: yesJournal of the European Ceramic Society, 2019
The incorporation of an efficient contact mechanics algorithm into a phase field sintering model is presented. Contact stresses on the surface of arbitrarily shaped interacting bodies are evaluated and built into the model as an elastic strain energy ...
B. Dzepina, D. Balint, D. Dini
semanticscholar   +1 more source

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