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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.
CitationAbdollahi, A.; Arias, I. A phase-field fracture model of ferroelectric materials under electro-mechanical loading. A: Conference on Smart Materials, Adaptive Structures and Intelligent Systems. "SMASIS 2011 - ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems". 2011, p. 297-301.
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