scholarly journals Fatigue damage detection of CFRP using the electrical resistance change method

2013 ◽  
Vol 14 (4) ◽  
pp. 350-355 ◽  
Author(s):  
Akira Todoroki ◽  
Yoshihiro Mizutani ◽  
Yoshiro Suzuki ◽  
Daichi Haruyama
Keyword(s):  
Damage Detection ◽  
Fatigue Damage ◽  
Electrical Resistance ◽  
Resistance Change ◽  
Electrical Resistance Change

Statistical Damage Detection of Laminated CFRP Beam Using Electrical Resistance Change Method

2007 ◽  
Vol 353-358 ◽  
pp. 1330-1333 ◽  
Author(s):  
Kosuke Takahashi ◽  
Akira Todoroki ◽  
Yoshinobu Shimamura ◽  
Atsushi Iwasaki
Keyword(s):  
Damage Detection ◽  
Electrical Resistance ◽  
Damage Identification ◽  
Detection System ◽  
Measuring Method ◽  
Resistance Change ◽  
Delamination Crack ◽  
Electrical Resistance Change ◽  
Electrical Interference ◽  
Statistical Damage

Statistical diagnosis using electrical resistance changes is performed to detect a delamination crack in a CFRP beam. This method enables to reduce data required for damage identification. First, a new measuring method of multiple electrical resistance changes is proposed to perform statistical diagnosis. The proposed method measures electrical resistance changes of multiple segments in a CFRP beam although electrical interference must be considered when multiple voltages are charged at once. Next, statistical diagnosis is performed on loading to the CFRP beam. A delamination crack is detected by the change of relative relationship between multiple electrical resistance changes due to damage occurring. As a result, the monitored states of the CFRP beam are diagnosed exactly by the proposed damage detection system.

Statistical Damage Detection of Laminated CFRP Beam Using Electrical Resistance Change Method

2007 ◽  
Vol 353-358 ◽  
pp. 2337-2340 ◽  
Author(s):  
Kosuke Takahashi ◽  
Akira Todoroki ◽  
Yoshinobu Shimamura ◽  
Atsushi Iwasaki
Keyword(s):  
Damage Detection ◽  
Electrical Resistance ◽  
Damage Identification ◽  
Detection System ◽  
Measuring Method ◽  
Resistance Change ◽  
Delamination Crack ◽  
Electrical Resistance Change ◽  
Electrical Interference ◽  
Statistical Damage

Statistical diagnosis using electrical resistance changes is performed to detect a delamination crack in a CFRP beam. This method enables to reduce data required for damage identification. First, a new measuring method of multiple electrical resistance changes is proposed to perform statistical diagnosis. The proposed method measures electrical resistance changes of multiple segments in a CFRP beam although electrical interference must be considered when multiple voltages are charged at once. Next, statistical diagnosis is performed on loading to the CFRP beam. A delamination crack is detected by the change of relative relationship between multiple electrical resistance changes due to damage occurring. As a result, the monitored states of the CFRP beam are diagnosed exactly by the proposed damage detection system.

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