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GPFniCS: A generalised phase field method to model fracture

open access: yesSoftwareX, 2023
Advanced damage tolerance design of materials and mechanical components heavily relies on fracture failure analysis. A robust, efficient, and versatile software (GPFniCS) is developed and provided for public access to perform fracture analyses based on ...
Manish Kumar   +2 more
doaj   +2 more sources

Rothe’s Method for Phase Field Problem

open access: yesTrends in Computational and Applied Mathematics, 2007
In this paper, a phase-field model is considered. Analysis of a time discretization for an initial-boundary value problem for this phase-field model is presented. Convergence is proved and existence, uniqueness and regularity results are derived.
C. Vaz
doaj   +3 more sources

A phase-field method for modeling cracks with frictional contact [PDF]

open access: yesInternational Journal for Numerical Methods in Engineering, 2019
We introduce a phase-field method for continuous modeling of cracks with frictional contacts. Compared with standard discrete methods for frictional contacts, the phase-field method has two attractive features: (1) it can represent arbitrary crack ...
Choo, Jinhyun, Fei, Fan
core   +4 more sources

Phase-Field Crystal Method for Bilayer Graphene

open access: yesNanomaterials
Bilayer graphene has been a subject of intense study in recent years. Its most common structure is AB (Bernal) stacking, where one layer is shifted relative to the other, leading to distinct electronic behaviors compared to the less stable AA stacking or
Heting Qiao, Kai Liu
doaj   +3 more sources

Coalescence of surfactant-laden drops by Phase Field Method [PDF]

open access: yesJournal of Computational Physics, 2019
In this work, we propose and test the validity of a modified Phase Field Method (PFM), which was specifically developed for large scale simulations of turbulent flows with large and deformable surfactant-laden droplets. The time evolution of the phase field, ϕ, and of the surfactant concentration field, ψ, are obtained from two Cahn-Hilliard-like ...
Giovanni Soligo   +2 more
exaly   +5 more sources

Computational thermodynamics and microstructure simulations to understand the role of grain boundary phase in Nd-Fe-B hard magnets

open access: yesScience and Technology of Advanced Materials, 2021
To control the coercivity of Nd hard magnets efficiently, the thermal stability of constituent phases and the microstructure changes observed in hard magnets during thermal processes should be understood.
Toshiyuki Koyama   +2 more
doaj   +1 more source

Modelling of Microstructure Evolution during Laser Processing of Intermetallic Containing Ni-Al Alloys

open access: yesMetals, 2021
There is a growing interest in laser melting processes, e.g., for metal additive manufacturing. Modelling and numerical simulation can help to understand and control microstructure evolution in these processes. However, standard methods of microstructure
Mohammad Amin Jabbareh, Hamid Assadi
doaj   +1 more source

Sharp Phase Field Method [PDF]

open access: yesPhysical Review Letters, 2018
Phase field modelling offers an extremely general framework to predict microstructural evolutions in complex systems. However, its computational implementation requires a discretisation scheme with a grid spacing small enough to preserve the continuous character of the theory. We present here a new formulation, which is intrinsically discrete, in which
Finel, Alphonse   +5 more
openaire   +4 more sources

Simulation of Microstructure Evolution in Mg Alloys by Phase-Field Methods: A Review

open access: yesCrystals, 2022
Microstructure is one of the vital factors that determine the mechanical properties of magnesium (Mg) alloys. However, traditional microstructure characterization methods hardly satisfy the needs of tracking the morphological evolution of Mg alloys. With
Yongbiao Wang   +10 more
doaj   +1 more source

A phase-field model with irradiation-enhanced diffusion for constituent redistribution in U-10wt%Zr metallic fuels

open access: yesFrontiers in Materials, 2022
Constituent redistribution is a unique phenomenon to metal fuels that threatens the safety of such fuel forms. Therefore, it is imperative to establish models to understand the intrinsic mechanisms and predict the redistribution kinetics.
Chunyang Wen   +4 more
doaj   +1 more source

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