000015163 001__ 15163
000015163 005__ 20161115100213.0
000015163 04107 $$aeng
000015163 046__ $$k2016-08-21
000015163 100__ $$aRudykh, Stephan
000015163 24500 $$aMicromechanics of magneto- and electro-active soft composites

000015163 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000015163 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000015163 506__ $$arestricted
000015163 520__ $$2eng$$aIn this work, we analyze the nonlinear coupled behavior of magnetoactive elastomer (MAE) composites undergoing finite deformations in the presence of a magnetic field. The responses of MAEs with periodically distributed active particles embedded in a soft matrix are determined numerically. These numerical results together with analytical estimates for random distributions of particles illustrate the strong sensitivity of the magnetomechanical coupling to changes in microstructures. Based on an exact solution for magneto-active laminates, we propose a model for anisotropic MAEs with chain-like structures induced during the curing process in a magnetic field. Next, stability of the anisotropic MAEs is analyzed, and explicit expressions for critical magnetic field are derived in terms of constituents’ volume fractions and material properties. Finally, a new distinct mode of instabilities is found for the composites with high concentrations of the active phase. Thanks to the mathematical analogy, the findings also apply to dielectric elastomer composites.

000015163 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000015163 653__ $$a

000015163 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000015163 720__ $$aRudykh, Stephan
000015163 8560_ $$ffischerc@itam.cas.cz
000015163 8564_ $$s32947$$uhttps://invenio.itam.cas.cz/record/15163/files/TS.SM04-3.04.pdf$$yOriginal version of the author's contribution as presented on CD,  page 1917, code TS.SM04-3.04
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000015163 962__ $$r13812
000015163 980__ $$aPAPER