磁流变材料的粘塑性模型

在外加磁场作用下，磁流变材料的力学性质可迅速发展变化甚至发生相变固化，材料的性能依赖于外加磁场的强度，作者基于一个简单的机械模型，发展了磁流变体的粘塑性本构描述，预言了磁流变流体的力学行为随磁场强度的变化，较好地描述材料的不同磁场强度下应力随应变而变化，结果表明所提出的模型能描述MR材料的塑性变形，粘性变形等内在的力学响应特性。

A Visco-plastic Model of Magnetorheological Materials

Magnetorheological materials are a class of smart materials whose reological properties may be rapidly varied by application of magnetic field. By a simple mechanical mold, a visco-plastic model for the materials is developed. It is shown that the model can describe the variation of the mechanical properties for the Magnetorheological materials in the different magnetic field. The result is shown that the model can characterize the mechanical properties of Magnetorheological Materials in plastic and viscous variation.