铁磁材料相对磁导率变化与应力关系的磁力学模型  

A magneto-mechanical model on differential permeability and stress of ferromagnetic material

作　　者：王社良[1] 王威[1] 苏三庆[1] 张少峰[1] 

机构地区：[1]西安建筑科技大学土木工程学院,陕西西安710055

出　　处：《西安科技大学学报》2005年第3期288-291,305,共5页Journal of Xi’an University of Science and Technology

基　　金：国家自然科学基金(50278077);陕西省自然科学基金(2004E230);陕西省教育厅专项基金(05JK224)

摘　　要：应力一直被认为是影响铁磁材料磁特性的重要因素。不论是提高缺陷识别信号还是应力监测等相当复杂的无损检测技术的开发,都要求对应力对磁特性影响的基本知识有一定的掌握,但相关的应力对铁磁材料相对磁导率的影响关系方面的文章还未见到。因此,本文参考有关研究者的成果,指出了一种关于铁磁材料相对磁导率变化与应力关系的磁力学模型,作为反应铁磁材料磁力耦合的一个方程式。Stress has long been known to have major effects on magnetic properties of ferromagnetic materials, For many non-destructive inspection techniques this is usually an undesirable complication although it can also be exploited both to enhance defect signals and as a technique for monitoring stress, This require to know the effects of stress on the magnetic characteristic, However, the relevant research report on the relation of stress and differential permeability hasn＇t been seen up to now.A magneto-mechanical model on differential permeability and stress was put forward according to different investigators, which can be seen as an equation of the coupling relation between stress and magnetic for ferromagnetic materials.

关 键 词：铁磁材料 应力 相对磁导率 磁力模型 

分 类 号：TB302[一般工业技术—材料科学与工程] TU317[建筑科学—结构工程]