Multiscale homogenization of magneto-electric porous two-phase composites
Abstract eng: Multiferroic materials combine two or more ferroic states with each other. Certain materials enable a coupling between magnetization and electric polarization. This magneto-electric coupling can find applications in sensor technology or data storage devices. Since most of the singlephase multiferroics show such coupling at temperatures far below a technical relevant range, two-phase composites, consisting of a ferroelectric and a ferromagnetic phase, are manufactured. They generate a strain-induced magneto-electric coupling at room temperature due to the interaction of their constituents. However, the performance and reliability of technical devices can be influenced by defects or pores, which can arise during the manufacturing process. In this contribution, we analyze the impact of pores on the magnitude of the magneto-electric coefficient. In order to determine the effective properties, a twoscale Finite Element (FE2) homogenization approach is performed, which combines the macroscopic and microscopic level considering the microscopic morphology.
Contributors:
Publisher:
Taylor and Francis Group, London, UK
Conference Title:
Conference Title:
Sixth International Conference on Structural Engineering, Mechanics and Computation
Conference Venue:
Cape Town, South Africa
Conference Dates:
2016-09-05 / 2016-09-07
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2016-09-20, last modified 2016-09-20
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