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Fracture toughening and toughness asymmetry induced by flexoelectricity

Author
Abdollahi, A.; Peco, C.; Zurita, D.; Arroyo, M.; Catalan, G.; Arias, I.
Type of activity
Journal article
Journal
Physical review B: condensed matter and materials physics
Date of publication
2015-09-08
Volume
92
Number
9
First page
1
Last page
7
DOI
https://doi.org/10.1103/PhysRevB.92.094101 Open in new window
Project funding
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
Repository
http://hdl.handle.net/2117/78562 Open in new window
Abstract
Cracks generate the largest strain gradients that any material can withstand. Flexoelectricity (coupling between strain gradient and polarization) must therefore play an important role in fracture physics. Here we use a self-consistent continuum model to evidence two consequences of flexoelectricity in fracture: the resistance to fracture increases as structural size decreases, and it becomes asymmetric with respect to the sign of polarization. The latter phenomenon manifests itself in a range o...
Citation
Abdollahi, A., Peco, C., Millán, D., Arroyo, M., Catalan, G., Arias, I. Fracture toughening and toughness asymmetry induced by flexoelectricity. "Physical review B: condensed matter and materials physics", 08 Setembre 2015, vol. 92, núm. 9, p. 1-7.
Keywords
BOUNDARY-CONDITIONS, CRACK-PROPAGATION, ELECTRIC-FIELD, FILMS, POLARIZATION, SINGLE-CRYSTALS, SOLIDS, TITANATE
Group of research
LACÀN - Numerical Methods for Applied Sciences and Engineering

Participants