MEASUREMENT OF THE FATIGUE CRACK DEPTHS IN ALUMINIUM PLATES

被引：0
|
作者：
Ribeiro, Artur Lopes [1 ]
Ramos, Helena Geirinhas [1 ]
Pasadas, Dario Jeronimo [1 ]
Rocha, Tiago Jorge [1 ]
机构：
[1] Univ Lisbon, Inst Super Tecn, Inst Telecomunicacoes, Lisbon, Portugal
来源：
M2D2015: PROCEEDINGS OF THE 6TH INTERNATIONAL CONFERENCE ON MECHANICS AND MATERIALS IN DESIGN | 2015年
关键词：
Eddy current evaluation; fatigue cracks; non-destructive quantitative evaluation;
D O I：
暂无
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
This work estimates the depth of cracks using the eddy current method. After detection of one crack the material surface is scanned. The eddy currents are excited in the material using a special planar coil to produce a spatially invariant primary field. The secondary field, due to the eddy currents is measured using a high sensitivity giant magneto-resistor sensor. It is experimentally demonstrated that the maximum amplitude of the field perturbation due to the presence of a defect correlates with the depth of the crack.
引用
收藏
页码：1875 / 1876
页数：2
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