Magnetorheology and magnetostriction of isolated chains of nonlinear magnetizable spheres
Magnetorheology and magnetostriction of isolated chains of nonlinear magnetizable spheres
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DOI：
10.1122/1.1343878
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发表时间：
2001-02
影响因子：
3.3
通讯作者：
Y. M. Shkel;D. Klingenberg
中科院分区：
文献类型：
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作者：
Y. M. Shkel;D. Klingenberg
研究了非磁连续介质中非线性可磁化粒子的磁、磁流变和磁致伸缩行为。在球磁导率由Frohlich-Kennelly方程给出的情况下，精确求解了孤立球在均匀磁场中的磁化强度。该解被并入由排列的孤立球链组成的悬浮液的点-偶极子模型中。悬浮液的磁化强度和剪切存储模数反映了在强场强下饱和的非线性磁化强度，与一些实验观测结果一致，也与前人的计算一致。磁致伸缩行为的分析表明，与在外加磁场中磁化强度为线性的材料相比，需要额外的磁致伸缩参数。
The magnetic, magnetorheological, and magnetostrictive behavior of nonlinear magnetizable particles in a nonmagnetic continuum is considered. The magnetization of isolated spheres in a uniform magnetic field is solved exactly for the case where the field-dependent sphere permeability is given by the Frohlich–Kennelly equation. This solution is incorporated into a point-dipole model for suspensions composed of aligned, isolated chains of spheres. The suspension magnetization and shear storage modulus reflect the nonlinear magnetization, saturating at large field strengths, consistent with some experimental observations and in agreement with previous calculations. Analysis of the magnetostrictive behavior reveals that additional magnetostriction parameters are required compared to materials whose magnetization is linear in the applied field.