Impedance-Based Health Monitoring of Civil Structural Components
Top Cited Papers
- 1 December 2000
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of Infrastructure Systems
- Vol. 6 (4), 153-160
- https://doi.org/10.1061/(asce)1076-0342(2000)6:4(153)
Abstract
This paper presents experimental evidence on the use of the impedance-based health-monitoring technique on components typical of civil structures. The basic principle behind this technique is to utilize high-frequency structural excitations (typically >30 kHz) through a surface-bonded piezoelectric sensor/actuator to detect changes in structural point impedance due to the presence of damage. Real-time damage detection on composite-reinforced concrete walls was investigated and the capability of this technique to detect imminent damage, well in advance of actual failure, was confirmed. Concepts that directly applied to this technique itself, such as effects of boundary condition changes and the effects of temperature changes, were also investigated. Experimental investigations were carried out on a 1/4-scale bridge element and a pipe joint commonly found in civil structures, to verify robustness of the technique to changes in environmental conditions. Data collected from the tests demonstrate the capability and the effectiveness of this technology to monitor the condition of various civil structures.Keywords
This publication has 7 references indexed in Scilit:
- Impedance-Based Structural Health Monitoring for Temperature Varying Applications.JSME International Journal Series A, 1999
- A Summary Review of Vibration-Based Damage Identification MethodsThe Shock and Vibration Digest, 1998
- High-frequency impedance analysis for NDE of complex precision partsPublished by SPIE-Intl Soc Optical Eng ,1996
- Local-area health monitoring of aircraft via piezoelectric actuator/sensor patchesProceedings of SPIE, 1995
- Truss Structure Integrity Identification Using PZT Sensor-ActuatorJournal of Intelligent Material Systems and Structures, 1995
- Coupled Electro-Mechanical Analysis of Adaptive Material Systems — Determination of the Actuator Power Consumption and System Energy TransferJournal of Intelligent Material Systems and Structures, 1994
- A Self-Sensing Piezoelectric Actuator for Collocated ControlJournal of Intelligent Material Systems and Structures, 1992