Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2005.05a
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- Pages.184-187
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- 2005
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- 1598-2548(pISSN)
Electro Mechanical Impedance Based Damage Detection in Beams with Temperature Effect
온도 영향을 받는 보 구조물의 EMI 기반 손상 검색
- Published : 2005.05.01
Abstract
Physical changes in a structural system may cause changes in mechanical impedance of the system. Due to the electro-mechanical coupling effect in piezoelectric materials, this change can be monitoring by the electrical impedance of the piezoelectric sensor. In this paper, the variability of electro-mechanical impedance caused by temperature effect is assessed to adjust impedance data used for EMI based damage detection in beams. First experiments on beams are described. Next, experiments were performed under the temperature varying condition, in the range of