Knowledge Management System of Institue of Mechanics, CAS
| Nonlinear Constitutive Behavior Of Ferroelectric Materials | |
Li HJ(李海军) ; Liu F(刘峰); Wang ZQ(王自强); Wang, TC (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China.
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| Source Publication | Science In China Series G-Physics Mechanics & Astronomy
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| 2008 | |
| Pages | 1339-1356 |
| ISSN | 1672-1799 |
| Abstract | 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. |
| Keyword | 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 |
| DOI | 10.1007/s11433-008-0140-4 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000258317000016 |
| WOS Keyword | ELECTRIC-MECHANICAL BEHAVIOR ; FINITE-ELEMENT METHOD ; THERMODYNAMICAL FORMULATION ; CERAMICS ; HYSTERESIS ; MICROMECHANICS ; MODEL ; PIEZOCERAMICS ; SIMULATION ; LAW |
| WOS Research Area | Physics |
| WOS Subject | Physics, Multidisciplinary |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/25924 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Wang, TC (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Li HJ,Liu F,Wang ZQ,et al. 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,&Wang, TC .(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. |
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