Evaluating material degradation by the inspection of minor loop magnetic behavior using the moving Preisach formalism
Evaluating material degradation by the inspection of minor loop magnetic behavior using the moving Preisach formalism
复制标题
使用移动 Preisach 形式通过检查小环磁行为来评估材料退化
DOI：
10.1063/1.2170960
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发表时间：
2006
影响因子：
3.2
通讯作者：
J. Melkebeek
中科院分区：
文献类型：
--
作者：
L. Vandenbossche;L. Dupré;J. Melkebeek
研究了两种磁性无损检测技术在金属疲劳损伤监测中的应用。首先，一组实验获得的主要和次要的准静态磁化循环的移动Preisach形式主义的框架内进行分析：平均场参数k被发现增加与应力循环的数量n，而且，在最后10%的疲劳寿命的比率dk scindn是较高的。第二，在疲劳试验期间，对样品施加恒定磁场，并监测每个应力循环期间由于磁力效应引起的磁化强度变化：峰-峰磁化强度首先增加，然后稳定，最后在疲劳寿命的95%时开始下降。
The application of two magnetic nondestructive evaluation techniques is investigated to monitor material degradation caused by metal fatigue. First, a set of experimentally obtained major and minor quasistatic magnetization loops is analyzed within the framework of the moving Preisach formalism: the mean-field parameter k is found to increase with the number of stress cycles n and, moreover, the ratio dk∕dn is higher during the last 10% of the fatigue lifetime. Second, during the fatigue test a constant magnetic field is applied to the sample and the magnetization variation during each stress cycle due to the magnetomechanical effect is monitored: the peak-to-peak magnetization first increases, then stabilizes, and finally starts to decrease at 95% of the fatigue lifetime.