This paper presents the results of the tests on electrical impedance for the steel wire under the effect of ambient temperature and stress level shift. The experiments are carried out in variable temperature conditions ranging from 30 to 60 ℃ and different stress levels ranging from 10% to 70% of yield strength. The results show the relationship between electrical impedance and temperature is a linear correlation at all stress levels.

• 응우옌 주이 훙(Department of Civil Engineering, Kyungnam University) | Nguyen Duy-Hung
• 김병화(Department of Civil Engineering, Kyungnam University) | Kim Byeong Hwa