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Title:
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A phase-field fracture model of ferroelectric materials under electro-mechanical loading
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Author:
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Abdollahi Hosnijeh, Amir; Arias Vicente, Irene
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Matemàtica Aplicada III; Universitat Politècnica de Catalunya. LACÀN - Mètodes Numèrics en Ciències Aplicades i Enginyeria |
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Abstract:
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A phase-field model is proposed for the coupled simulation of microstructure and fracture evolution in ferroelectric materials. The model is based on energetic phase-field approaches for brittle fracture and ferroelectric domain formation and evolution.
The variational nature of these approaches makes their coupling very natural. However the main challenge is to encode the
electro-mechanical conditions of the sharp crack faces into the phase-field framework since the crack in this model is smeared
and represented by an internal layer. We develope the model for different crack face boundary conditions. Simulations show the
microstructure induced by the presence of the crack. Interactions between the microstructure and the crack are investigated under different electro-mechanical loadings. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Matemàtiques i estadística::Matemàtica aplicada a les ciències
-Àrees temàtiques de la UPC::Enginyeria dels materials::Materials funcionals::Materials elèctrics i electrònics
-Ferroelectric devices -- Materials
-Coupled simulation
-Crack faces
-Electro-mechanical
-Ferroelectric domains
-Fracture model
-Internal layers
-Phase fields
-Phase-field approaches
-Phase-field models
-Sharp crack
-Materials ferroelèctrics |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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