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Controlling anomalous stresses in soft field-responsive systems

D. Reguera·J. M. Rubí·A. Pérez-Madrid
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Abstract

We report a new phenomenon occurring in field-responsive suspensions: shear-induced anomalous stresses. Competition between a rotating field and a shear flow originates a multiplicity of anomalous stress behaviors in suspensions of bounded dimers constituted by induced dipoles. The great variety of stress regimes includes non-monotonous behaviors, multi-resonances, negative viscosity effect and blockades. The reversibility of the transitions between the different regimes and the self-similarity of the stresses make this phenomenon controllable and therefore applicable to modify macroscopic properties of soft condensed matter phases

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D. Reguera, J. M. Rubí, A. Pérez-Madrid. 2000-03-02. Controlling anomalous stresses in soft field-responsive systems. https://doi.org/10.1103/physreve.62.5313

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