000015497 001__ 15497
000015497 005__ 20161115100223.0
000015497 04107 $$aeng
000015497 046__ $$k2016-08-21
000015497 100__ $$aVidyasagar, Vidyasagar
000015497 24500 $$aSpectral Methods for Electromechanical Coupling in Ferroelectrics

000015497 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000015497 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000015497 506__ $$arestricted
000015497 520__ $$2eng$$aRecent advances in fast numerical methods to compute the mechanical response of heterogeneous microstructures have allowed the solution of hitherto intractable systems. In particular the use of an iterative Fourier Spectral Method as opposed to the traditional Finite Element Method has gained significant interest in the periodic homogenisation of microstructures. In this paper, a method is presented to solve a periodic boundary value problem involving electromechanical coupling in a polycrystalline ferroelectric microstructure. In addition to the mechanical response of the structure, this method provides insight into the kinetics of domain wall motion in a complex microstructure. Time hysteresis curves for the electric displacement and strain evolution resulting from a saw-tooth electric loading are presented, and are shown to qualitatively match experimental results. An overview of the diverse applications of this method is also provided.

000015497 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015497 653__ $$a

000015497 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000015497 720__ $$aVidyasagar, Vidyasagar
000015497 8560_ $$ffischerc@itam.cas.cz
000015497 8564_ $$s162500$$uhttps://invenio.itam.cas.cz/record/15497/files/TS.SM15-6.04.pdf$$yOriginal version of the author's contribution as presented on CD,  page 2915, code TS.SM15-6.04
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000015497 962__ $$r13812
000015497 980__ $$aPAPER