Nonlinear Constitutive Behavior Of Ferroelectric Materials
文献类型：期刊论文
| 作者 | Li HJ(李海军) ; Liu F(刘峰); Wang ZQ(王自强)
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| 刊名 | Science In China Series G-Physics Mechanics & Astronomy
 |
| 出版日期 | 2008 |
| 页码 | 1339-1356 |
| 通讯作者邮箱 | tcwang@imech.ac.cn |
| 关键词 | Volume Fraction Of Domain Switching Multi-Domain Mechanical Model Finite Element Method (Fem) Domain Switching Electric-Mechanical Behavior Finite-Element Method Thermodynamical Formulation Ceramics Hysteresis Micromechanics Model Piezoceramics Simulation Law |
| ISSN号 | 1672-1799 |
| 通讯作者 | Wang, TC (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China. |
| 中文摘要 | The ferroelectric specimen is considered as an aggregation of many randomly oriented domains. According to this mechanism, a multi-domain mechanical model is developed in this paper. Each domain is represented by one element. The applied stress and electric field are taken to be the stress and electric field in the formula of the driving force of domain switching for each element in the specimen. It means that the macroscopic switching criterion is used for calculating the volume fraction of domain switching for each element. By using the hardening relation between the driving force of domain switching and the volume fraction of domain switching calibrated, the volume fraction of domain switching for each element is calculated. Substituting the stress and electric field and the volume fraction of domain switching into the constitutive equation of ferroelectric material, one can easily get the strain and electric displacement for each element. The macroscopic behavior of the ferroelectric specimen is then directly calculated by volume averaging. Meanwhile, the nonlinear finite element analysis for the ferroelectric specimen is carried out. In the finite element simulation, the volume fraction of domain switching for each element is calculated by using the same method mentioned above. The interaction between different elements is taken into account in the finite element simulation and the local stress and electric field for each element is obtained. The macroscopic behavior of the specimen is then calculated by volume averaging. The computation results involve the electric butterfly shaped curves of axial strain versus the axial electric field and the hysteresis loops of electric displacement versus the electric field for ferroelectric specimens under the uniaxial coupled stress and electric field loading. The present theoretical prediction agrees reasonably with the experimental results. |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | ELECTRIC-MECHANICAL BEHAVIOR ; FINITE-ELEMENT METHOD ; THERMODYNAMICAL FORMULATION ; CERAMICS ; HYSTERESIS ; MICROMECHANICS ; MODEL ; PIEZOCERAMICS ; SIMULATION ; LAW |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000258317000016 |
| 公开日期 | 2009-08-03 ; 2009-09-14 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/25924]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Li HJ,Liu F,Wang ZQ. Nonlinear Constitutive Behavior Of Ferroelectric Materials[J]. Science In China Series G-Physics Mechanics & Astronomy,2008:1339-1356. |
| APA | 李海军,刘峰,&王自强.(2008).Nonlinear Constitutive Behavior Of Ferroelectric Materials.Science In China Series G-Physics Mechanics & Astronomy,1339-1356. |
| MLA | 李海军,et al."Nonlinear Constitutive Behavior Of Ferroelectric Materials".Science In China Series G-Physics Mechanics & Astronomy (2008):1339-1356. |
入库方式： OAI收割
来源：力学研究所
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