Results 31 to 40 of about 1,373,943 (268)

Periodically-arrayed ferroelectric nanostructures induced by strain concentration in SrTiO3

open access: yesNihon Kikai Gakkai ronbunshu, 2019
Ferroelectric behavior in mechanically strained SrTiO3 nanoporous is investigated using phase-field models. We find, in the paraelectric nanoporous, periodically arrayed ferroelectric nano-region is formed due to strain concentration, namely ...
Kairi MASUDA   +3 more
doaj   +1 more source

Phase Field Methods and Dislocationss

open access: yesMRS Proceedings, 2000
We present a general formalism for incorporating dislocations in Phas Field methods. This formalism is based on the elastic equiva;ence betweem a dislocation loop and a platelet inclusion of specific stress-free strain related to the loop Burgers vector and normal.
Rodney, D., Finel, A.
openaire   +3 more sources

FAIR Principles for Phase-Field Practitioners | CHiMaD Phase-field XIII

open access: yes, 2022
FAIR Principles for Phase-Field Practitioners was delivered at the CHiMaD Phase-Field Workshop XIII in May 2022.
Trevor Keller, Andrea Medina-Smith
openaire   +1 more source

Computational Simulation by Phase Field: Martensite Transformation Kinetics and Variant Selection under External Fields

open access: yesCrystals, 2022
Tailoring martensite transformation is critical for improving the mechanical properties of advanced steels. To provide preliminary guidance for the control of martensite transformation behaviour using external fields by computational simulation method ...
Chenchong Wang   +2 more
doaj   +1 more source

A Generalized Phase-Field System

open access: yesJournal of Mathematical Analysis and Applications, 1999
The authors consider the problem \((\Omega\) bounded domain in \(\mathbb{R}^N\) with \(C^2\)-boundary) \[ \begin{aligned} {\partial u\over\partial t}+l {\partial \varphi\over\partial t}=\Delta u+f(x,t), \quad & (x,t)\in Q:=\Omega \times(0,T),\\ {\partial\varphi \over\partial t}=\Delta\varphi+ F(x,t,\varphi) +u,\quad & (x,t)\in Q,\\ {\partial u\over ...
Moroşanu, Costică, Motreanu, Dumitru
openaire   +1 more source

Phase field simulation of eutectoid microstructure during austenite-pearlite phase transformation

open access: yesJournal of Materials Research and Technology, 2023
Pearlitic steel, known for its superior strength, plasticity and wear resistance, is widely used in diverse applications including light rail, spring production, wire manufacturing, high-rise constructions, etc. The pearlite phase transformation involves
Shaojie Lv   +9 more
doaj   +1 more source

A Phase Field Approach to Trabecular Bone Remodeling

open access: yesFrontiers in Applied Mathematics and Statistics, 2020
We introduce a continuous modeling approach which combines elastic response of the trabecular bone structure with the concentration of signaling molecules within the bone and a mechanism for concentration dependent local bone formation and resorption. In
Sebastian Aland   +6 more
doaj   +1 more source

Lattice Phase Field Model for Nanomaterials [PDF]

open access: yesMaterials, 2021
The lattice phase field model is developed to simulate microstructures of nanoscale materials. The grid spacing in simulation is rescaled and restricted to the lattice parameter of real materials. Two possible approaches are used to solve the phase field equations at the length scale of lattice parameter.
Pingping Wu, Yongfeng Liang
openaire   +2 more sources

Phase-Field Peridynamics

open access: yesCoRR
Peridynamics formulates the balance of linear momentum as an integro-differential equation, making it naturally suited for fracture modeling without special treatment of discontinuities. The bond-associated correspondence formulation provides a highly accurate peridynamic framework by computing bond-wise deformation gradients that are free of zero ...
Kai Partmann   +3 more
openaire   +2 more sources

Particles, phases, fields [PDF]

open access: yesBanach Center Publications, 1996
The physical properties of particles and phasesare considered in connection with their description by means of the deformation of space-time. The analogy between particle trajectories and phase boundaries is discussed. The geometry and its curvature is related to the Clifford algebraic structure whose construction in terms of the theory of deformation ...
J. Rutkowski   +3 more
openaire   +1 more source

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