An extended constitutive model for nonlinear reversible ferromagnetic behaviour under magnetomechanical multiaxial loading conditions
An extended constitutive model for nonlinear reversible ferromagnetic behaviour under magnetomechanical multiaxial loading conditions
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DOI：
10.1063/1.4975119
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发表时间：
2017-02
影响因子：
3.2
通讯作者：
Artjom Avakian;A. Ricoeur
中科院分区：
文献类型：
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作者：
Artjom Avakian;A. Ricoeur
本文提出了一种在不同边界条件下，铁磁材料在磁力复合多轴载荷作用下的本构模型及其有限元实现方法。现象学激发的模型能够预测磁化强度、应变和应力，因此是合适的，例如，用于多铁性复合材料。该方法涵盖了观察到的可逆非线性行为，例如，钴铁氧体和其他软磁合金。各种例子证明了该模型的适用性及其数值实现，并给出了一个洞察到的行为的软磁铁，暴露于不同的边界条件或嵌入到其他兼容的材料。
A constitutive modelling of ferromagnetic materials under combined magnetomechanical multiaxial loading with different boundary conditions and a finite element implementation are presented. The phenomenologically motivated model is capable of predicting magnetisation, strain, and stress and is thus suitable, e.g., for applications in multiferroic composites. The approach covers a reversible nonlinear behaviour as it is observed, e.g., in cobalt ferrite and other soft magnetic alloys. Various examples demonstrate the suitability of the model and its numerical implementation and give an insight into the behaviour of soft magnets, exposed to different boundary conditions or being embedded into other compliant materials.