A PHASE-FIELD FRACTURE MODEL OF FERROELECTRIC MATERIALS UNDER ELECTRO-MECHANICAL LOADING

被引：0
|
作者：
Abdollahi, Amir [1 ]
Arias, Irene [1 ]
机构：
[1] Univ Politecn Cataluna, Dept Matemat Aplicada 3, Lab Calcul Numer, E-08034 Barcelona, Spain
来源：
PROCEEDINGS OF THE ASME CONFERENCE ON SMART MATERIALS, ADAPTIVE STRUCTURES AND INTELLIGENT SYSTEMS (SMASIS 2011), VOL 1 | 2012年
关键词：
BATIO3;
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
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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收藏
页码：297 / 301
页数：5
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