Modeling of Magnetostriction of Soft Elastomer

2nd International Conference on Mathematical Modeling in Physical Sciences 2013

物理学;数学

Petr, Andriushchenko^1 ; Leonid, Afremov^1 ; Mariya, Chernova^1

Departament of Theoretical and Experimental Physics, School of Natural Sciences, Far Eastem Federal University, Sukhanova str., 8, 690950, Vladivostok, Russia^1

关键词: External magnetic field;    Heterogeneous materials;    Interacting elements;    Interaction forces;    Magnetic particle;    Microscopic deformations;    Movable cellular automata;    Newton's second law;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/490/1/012168/pdf
DOI  :  10.1088/1742-6596/490/1/012168

来源: IOP

【 摘 要 】

Small magnetic particles placed in a relatively soft polymer (with elastic modulus E ∼ 10 ÷ 100 kPa) are magnetically soft elastomers. The external magnetic field acts on each particle which leads to microscopic deformation of the material and consequently to changing of its shape-magnetostriction. For purposes of studying of magnetostriction the model of movable cellular automata (MCA), in which a real heterogeneous material is an ensemble of interacting elements of finite size-automata, is used. It's supposed to be that the motion of each automata can be described by Newton's Second law. The force acting on the i-th automata consists of the following components: volume-dependent force acting on the automata i which is caused by pressure from the surrounding automata; force of an external magnetic field acting on the i-th automata with some magnetic moment; and normal and tangential interaction force between a pair of i and j automata. This approach was used for modeling of magnetostriction elastomer.