Experimental Research of Damage Location in Aluminum Beam Base on EMI Technique
[1]Li Cheng,Chen Gongxuan,Tie Ying,et al.Experimental Research of Damage Location in Aluminum Beam Base on EMI Technique[J].Journal of Zhengzhou University (Engineering Science),2016,37(04):82-85,96.[doi:10.13705/j.issn.1671-6833.2016.04.018]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
37
Number of periods:
2016 04
Page number:
82-85,96
Column:
Public date:
2016-08-31
- Title:
- Experimental Research of Damage Location in Aluminum Beam Base on EMI Technique
- Keywords:
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electro-mechanical impedance (EMI) technique; nondestructive testing; damage localization; correlation coefficient; impedance
- CLC:
- -
- Abstract:
- In order to identify the damage location of aluminum beam structures, piezoelectric impedance technology was used to conduct damage localization experiments on aluminum beams. Precision impedance analyzers were used to measure the impedance real part signals of non-destructive and self-made damage holes at different frequency bands, and Pearson correlation coefficients were used to process the experimental data, Through multiple experiments, the impedance real part correlation coefficient values were found to be approximately linearly related to the distance between the piezoelectric ceramic sensor (PZT) and the damage in the applicable frequency range. Aluminum beam damage localization experiments were conducted within the applicable frequency range, and the detection values of damage holes and crack positions were basically consistent with the actual values. This confirms the effectiveness of this method in aluminum beam damage localization and can provide reference for non-destructive testing of damage localization
- References:
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