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Three-dimensional simulation of crack propagation in ferroelectric polycrystals: Effect of combined toughening mechanisms

Autor
Abdollahi, A.; Arias, I.
Tipus d'activitat
Article en revista
Revista
Acta materialia
Data de publicació
2014-02-15
Volum
65
Pàgina inicial
106
Pàgina final
117
DOI
https://doi.org/10.1016/j.actamat.2013.11.016 Obrir en finestra nova
Projecte finançador
MODELOS DE CAMPO DE FASE PARA PROBLEMAS DE DISCONTINUIDAD LIBRE: METODOS COMPUTACIONALES Y APLICACIONES EN FRACTURA MATERIALES FERRO
MODELOS DE CAMPO DE FASE PARA PROBLEMAS DE DISCONTINUIDAD LIBRE: METODOS COMPUTACIONALES Y APLICACIONES EN FRACTURA, MATERIALES FERROELECTRICOS Y MEMBRANAS BIOLOGICAS -2
Repositori
http://hdl.handle.net/2117/23536 Obrir en finestra nova
URL
http://www.sciencedirect.com/science/article/pii/S1359645413008665 Obrir en finestra nova
Resum
We simulate the fracture processes of ferroelectric polycrystals in three dimensions using a phase-field model. In this model, the grain boundaries, cracks and ferroelectric domain walls are represented in a diffuse way by three phase-fields. We thereby avoid the difficulty of tracking the interfaces in three dimensions. The resulting model can capture complex interactions between the crack and the polycrystalline and ferroelectric domain microstructures. The simulation results show the effect o...
Citació
Abdollahi, A.; Arias, I. Three-dimensional simulation of crack propagation in ferroelectric polycrystals: Effect of combined toughening mechanisms. "Acta materialia", 15 Febrer 2014, vol. 65, p. 106-117.
Paraules clau
BOUNDARY-CONDITIONS, BRITTLE-FRACTURE, COMPUTATIONAL MODEL, COMPUTER-SIMULATION, DOMAIN EVOLUTION, ELECTRIC-FIELDS, ELECTROMECHANICAL FRACTURE, ENERGY-RELEASE RATE, Ferroelectricity, Finite element analysis, Fracture, PHASE-FIELD SIMULATION, Phase-field models, Polycrystals, R-CURVE BEHAVIOR
Grup de recerca
LACÀN - Mètodes Numèrics en Ciències Aplicades i Enginyeria

Participants