Electromagnetic Stimulation of the Acoustic Emission for Fatigue Crack Detection of the Sheet Metal

被引：17
作者：
Jin, Liang [1 ]
Yang, Qingxin [2 ]
Liu, Suzhen [1 ]
Zhang, Chuang [1 ]
Li, Peng [3 ]
机构：
[1] Hebei Univ Technol, Prov Minist Joint Key Lab Electromagnet Field & E, Tianjin 300130, Peoples R China
[2] Tianjin Polytech Univ, Tianjin 300160, Peoples R China
[3] State Grid Hebei Baoding Power Supply Co, Baoding 071000, Peoples R China
来源：
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2010年 / 20卷 / 03期
关键词：
Acoustic emission; electromagnetic forces; nondestructive evaluation; ultrasonic;
D O I：
10.1109/TASC.2010.2042795
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A new electromagnetically induced acoustic emission technique (EMAE) is presented in this paper. Due to the acoustic emission signal generated by the electromagnetically induced high-density eddy current pulse, EMAE can locate small flaws or cracks in thin-walled structures nondestructively in order to inspect specific areas without loading the whole structure. The acoustic emission (AE) signal captured by conventional or fiber optic AE sensors is modulated at the defect due to the crack closure. The differences can be found by comparing modulated AE signals from the defects and ones from the intact region in the spectrum. In this paper, the finite element model of EMAE has been implemented based on the concrete experiment models. The sample's deformation has been analysed when the exciting coil locates at different position. The results of experiments indicate that electromagnetic transient modulation of the acoustic emission could be used to enhance detection of small cracks in thin-walled metallic structures.
引用
收藏
页码：1848 / 1851
页数：4
相关论文
共 11 条
  • [1] ELEFTHERION PM, 1995, P INT SOC OPT ENG OA, P256
  • [2] ERIC H, 1999, P INT SOC OPT ENG US, P32
  • [3] Electromagnetic stimulation of the ultrasonic signal for nondestructive detection of ferromagnetic inclusions and flaws
    Finkel, P
    Godinez, V
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 2004, 40 (04) : 2179 - 2181
  • [4] Finkel P, 2001, REV PROG Q, V557, P1747, DOI 10.1063/1.1373964
  • [5] JI B, 2008, P INT C COND MON DIA, P782
  • [6] Coupling mechanism of an EMAT
    Jian, X.
    Dixon, S.
    Edwards, R. S.
    Morrison, J.
    [J]. ULTRASONICS, 2006, 44 : E653 - E656
  • [7] Koorosh M., 2004, NDT&E INT, V37, P181
  • [8] Rongsheng G., 2002, NONDESTR TEST, V24, P23
  • [9] SUZHEN L, T CHINA ELECTROTECHN, V24, P23
  • [10] XIAODONG K, 1998, TRACING STRUCTURE CR
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