TY  - JOUR
TI  - Curve/probabilistic fitting of damage metrics for Al-7075 materials behavior by using electromechanical impedance method
AB  - The purpose of structural health monitoring is to provide information by making a simultaneous diagnosis of the status of thestructure. Despite aging, environmental conditions and unforeseen circumstances, the construction should remain as specified inthe design. Changing the environmental conditions causes the sensor and the host structure to change material properties. It isessential to take into account environmental conditions to prevent misdiagnosis. Therefore, the real cause of the change can bedetermined.In this study, the behavior of constrained piezoelectric wafer active sensor (PWAS)/Al 7075 was investigated by usingelectromechanical impedance method (EMI) under changing environmental conditions. Numerical studies on this material in theliterature are limited and all the experimental/ numerical results are compensated for the temperature effect and analyzed usingcurve/probabilistic fitting approach for the first time. The sample used in the experimental work was modeled in ANSYS finiteelement program. In the experimental and numerical results, it has been observed that as the temperature decreases, the frequencyshifts to the right and the amplitude increases. The experimental and simulation results were nearly the same. The temperatureeffect was compensated using the compensation algorithm for experimental and numerical studies. The results were comparedusing damage metrics. The experimental results were analyzed using a curve/probabilistic fitting approach.
AU  - TEKKALMAZ, Mesut
AU  - Sofuoğlu, Mehmet Alper
AU  - Haydarlar, Gökhan
DO  - 10.2339/politeknik.698644
PY  - 2021
JO  - Politeknik Dergisi
VL  - 24
IS  - 2
SN  - 1302-0900
SP  - 481
EP  - 494
DB  - TRDizin
UR  - http://search/yayin/detay/424153
ER  -