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Hydrodynamics of isotropic ferrogels

MPS-Authors
http://pubman.mpdl.mpg.de/cone/persons/resource/persons48100

Jarkova,  E.
MPI for Polymer Research, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons48589

Pleiner,  Harald
MPI for Polymer Research, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons48463

Müller,  H. W.
MPI for Polymer Research, Max Planck Society;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons47665

Brand,  H. R.
MPI for Polymer Research, Max Planck Society;

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Citation

Jarkova, E., Pleiner, H., Müller, H. W., & Brand, H. R. (2003). Hydrodynamics of isotropic ferrogels. Physical Review E, 68(4): 041706.


Cite as: http://hdl.handle.net/11858/00-001M-0000-000F-6356-0
Abstract
We derive the complete set of macroscopic dynamic equations for ferrogels under an external magnetic field, including the magnetization as an independent dynamic degree of freedom. The magnetoelasticity comes in the form of magnetostriction and through the magnetic part of the Maxwell stress. Various dynamic couplings of the elastic degree of freedom with the magnetization and the magnetic field are found. We discuss static elongation, shear deformations, and the modified sound spectrum in the presence of an external magnetic field.