TY - GEN
T1 - Development of a novel corrosion sensor based on electromechnical impedance instrumented piezoelectric-metal transducer
AU - Li, Weijie
AU - Gao, Shasha
AU - Liu, Tiejun
AU - Zou, Dujian
AU - Luo, Wei
N1 - Publisher Copyright:
© ASCE.
PY - 2021
Y1 - 2021
N2 - Corrosion of metallic materials accounts for most of the structural failures across multiple industries. In this paper, a novel corrosion sensor was proposed based on the piezoelectric-metal transducer using electromechanical impedance (EMI). The corrosion sensor consisted of a metal plate with a lead-zirconate-titanate (PZT) patch of the same cross section attached to it. Due to the electromechanical coupling effect, under the alternating electric field excitation, the in-plate contraction and extension of the PZT patch induces bending vibration of the piezoelectric-metal transducer. Corrosion-induced thickness loss of the piezoelectric-metal transducer reduces its bending rigidity and thus the bending resonant frequencies, which are measured by the electromechanical impedance technique. Finite-element simulation and experimental investigation were performed to validate the proposed corrosion sensor. Results showed that the proposed corrosion sensor is able to determine the corrosion-induced thickness loss quantitatively, which shows promising application potential.
AB - Corrosion of metallic materials accounts for most of the structural failures across multiple industries. In this paper, a novel corrosion sensor was proposed based on the piezoelectric-metal transducer using electromechanical impedance (EMI). The corrosion sensor consisted of a metal plate with a lead-zirconate-titanate (PZT) patch of the same cross section attached to it. Due to the electromechanical coupling effect, under the alternating electric field excitation, the in-plate contraction and extension of the PZT patch induces bending vibration of the piezoelectric-metal transducer. Corrosion-induced thickness loss of the piezoelectric-metal transducer reduces its bending rigidity and thus the bending resonant frequencies, which are measured by the electromechanical impedance technique. Finite-element simulation and experimental investigation were performed to validate the proposed corrosion sensor. Results showed that the proposed corrosion sensor is able to determine the corrosion-induced thickness loss quantitatively, which shows promising application potential.
UR - https://www.scopus.com/pages/publications/85104858763
U2 - 10.1061/9780784483381.032
DO - 10.1061/9780784483381.032
M3 - 会议稿件
AN - SCOPUS:85104858763
T3 - Earth and Space 2021: Materials, Structures, Dynamics, and Control in Extreme Environments - Selected Papers from the 17th Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments
SP - 344
EP - 351
BT - Earth and Space 2021
A2 - van Susante, Paul J.
A2 - Roberts, Alaina Dickason
PB - American Society of Civil Engineers (ASCE)
T2 - 17th Biennial International Conference on Engineering, Science, Construction, and Operations in Challenging Environments: Materials, Structures, Dynamics, and Control in Extreme Environments, Earth and Space 2021
Y2 - 19 April 2021 through 23 April 2021
ER -