| Title |
Experimental Relationship between Electrical Impedance of a Steel Wire and Applied Stress, Temperature, and Excited Frequency |
| Authors |
응유옌 주이 훙(Nguyen, Duy-Hung) ; 김병화(Kim, Byeong Hwa) |
| DOI |
https://doi.org/10.12652/Ksce.2020.40.2.0183 |
| Keywords |
긴장력;전기적 임피던스;자가진단;비파괴 진단 Tensile stress;Electrical impedance;Self-diagnosis;Nondestructive evaluation |
| Abstract |
This paper presents an experimental investigation regarding the sensitivity of electrical impedance of a steel wire to tensile stress, ambient temperature and induced frequency. For various stress levels and temperatures, the electrical impedance of a steel wire has been measured on a self-sensing system. The three experimental cases are carried out at various temperature conditions, stress levels and applied frequencies. If the temperature increases and stress level decreases at a given frequency, the electrical impedance on the steel wire increases. The results show that the correlation between electrical impedance and temperature is a linear relationship at all stress levels. It is noted that the sensitivity of impedance to temperature is much higher than the stress. |