Field-induced interactions in magneto-active elastomers - a comparison of experiments and simulations [article]

P. Metsch, H. Schmidt, D. Sindersberger, K.A. Kalina, J. Brummund, G.K. Auernhammer, G.J. Monkman, M. Kästner, Technische Informationsbibliothek (TIB)
In this contribution, field-induced interactions of magnetizable particles embedded into a soft elastomer matrix are analyzed with regard to the resulting mechanical deformations. By comparing experiments for two-, three- and four-particle systems with the results of finite element simulations, a fully coupled continuum model for magneto-active elastomers is validated with the help of real data for the first time. The model under consideration permits the investigation of magneto-active
more » ... rs with arbitrary particle distances, shapes and volume fractions as well as magnetic and mechanical properties of the individual constituents. It thus represents a basis for future studies on more complex, realistic systems. Our results show a very good agreement between experiments and numerical simulations—the deformation behavior of all systems is captured by the model qualitatively as well as quantitatively. Within a sensitivity analysis, the influence of the initial particle positions on the systems' response is examined. Furthermore, a comparison of the full three-dimensional model with the often used, simplified two-dimensional approach shows the typical overestimation of resulting interactions in magneto-active elastomers.
doi:10.34657/9274 fatcat:q2ok3gi7zbg5jpiww22ty64n3y