Effective permeability of shielding mortars containing ferromagnetic particles by using FEM

Antonino Laudani, G. Lozito, S. Coco, G. Pollicino
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引用次数: 1

Abstract

This paper proposes a strategy for the evaluation of effective permeability of mortars containing ferromagnetic particles for magnetic shielding. The representation of the composite mixture is done by using just 3-D inclusions in a finite element method. A statistical analysis is then performed on thousands of meshes representing the same sample geometry, with different inclusions distribution. Homogenization technique based on energy balance is then adopted in order to compute the effective permeability of the mortars. Thus, we are able to establish a relationship between the components of the mixture and an ideal equivalent homogeneous magnetic material with an assigned magnetic effective permeability. The results has been verified by using experimental data.
用有限元法研究含铁磁颗粒屏蔽砂浆的有效磁导率
本文提出了一种评价含铁磁微粒的磁屏蔽砂浆有效磁导率的方法。在有限元法中仅使用三维夹杂物来表示复合材料混合物。然后对代表相同样本几何形状的数千个网格进行统计分析,这些网格具有不同的内含物分布。采用基于能量平衡的均质化技术计算砂浆的有效渗透性。因此,我们能够建立混合物组分与具有指定有效磁导率的理想等效均质磁性材料之间的关系。用实验数据对结果进行了验证。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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