Liu, T. ; Webber, Kyle G. ; Lynch, Christopher S. (2008)
FINITE ELEMENT ANALYSIS WITH A FERROELECTRIC AND FERROELASTIC MATERIAL MODEL.
In: Integrated Ferroelectrics, 101 (1)
doi: 10.1080/10584580802470959
Article, Bibliographie
Abstract
Domain wall motion and phase transformations are driven by stress and electric field, are rate and temperature dependent, and can occur at relatively low stress and electric field levels due to field concentrators such as pores and electrode edges. Analysis of this behavior requires multiaxial material models with hysteresis in a finite element code. This work describes the current state of research in the area of constitutive modeling and finite element analysis of ferroelectric materials. It begins with a description of the large field experimental characterization of ferroelectric behavior including observed effects of field induced phase transformations. Constitutive modeling using a phenomenological approach (macroscale) is discussed followed by the micromechanical approach (microscale). These constitutive models connect the variables of stress, strain, electric field, electric displacement, temperature, and entropy. In addition to these relations, mechanics problems require satisfying electro-mechanical equilibrium and compatibility conditions. The final section presents results of finite element analysis using a ferroelectric material model.
| Item Type: | Article |
|---|---|
| Erschienen: | 2008 |
| Creators: | Liu, T. ; Webber, Kyle G. ; Lynch, Christopher S. |
| Type of entry: | Bibliographie |
| Title: | FINITE ELEMENT ANALYSIS WITH A FERROELECTRIC AND FERROELASTIC MATERIAL MODEL |
| Language: | English |
| Date: | January 2008 |
| Journal or Publication Title: | Integrated Ferroelectrics |
| Volume of the journal: | 101 |
| Issue Number: | 1 |
| DOI: | 10.1080/10584580802470959 |
| Abstract: | Domain wall motion and phase transformations are driven by stress and electric field, are rate and temperature dependent, and can occur at relatively low stress and electric field levels due to field concentrators such as pores and electrode edges. Analysis of this behavior requires multiaxial material models with hysteresis in a finite element code. This work describes the current state of research in the area of constitutive modeling and finite element analysis of ferroelectric materials. It begins with a description of the large field experimental characterization of ferroelectric behavior including observed effects of field induced phase transformations. Constitutive modeling using a phenomenological approach (macroscale) is discussed followed by the micromechanical approach (microscale). These constitutive models connect the variables of stress, strain, electric field, electric displacement, temperature, and entropy. In addition to these relations, mechanics problems require satisfying electro-mechanical equilibrium and compatibility conditions. The final section presents results of finite element analysis using a ferroelectric material model. |
| Uncontrolled Keywords: | Ferroelectric, ferroelastic, finite element, constitutive model |
| Divisions: | 11 Department of Materials and Earth Sciences 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences > Material Science > Elektromechanik von Oxiden 11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials |
| Date Deposited: | 24 Jan 2013 12:59 |
| Last Modified: | 28 Feb 2014 09:14 |
| PPN: | |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Send an inquiry |
Options (only for editors)
 |
Show editorial Details |
Drucken
Impressum