Integrated Structural Health Assessment Using Piezoelectric Active Sensors
This paper illustrates an integrated approach for identifying structural damage. The method presented utilizes piezoelectric (PZT) materials to actuate/sense the dynamic response of the structures. Two damage identification techniques are integrated in this study, including impedance methods and Lam...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2005-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2005/250912 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832564417842118656 |
|---|---|
| author | Jeannette R. Wait Gyuhae Park Charles R. Farrar |
| author_facet | Jeannette R. Wait Gyuhae Park Charles R. Farrar |
| author_sort | Jeannette R. Wait |
| collection | DOAJ |
| description | This paper illustrates an integrated approach for identifying structural damage. The method presented utilizes piezoelectric (PZT) materials to actuate/sense the dynamic response of the structures. Two damage identification techniques are integrated in this study, including impedance methods and Lamb wave propagations. The impedance method monitors the variations in structural mechanical impedance, which is coupled with the electrical impedance of the PZT patch. In Lamb wave propagations, one PZT patch acting as an actuator launches an elastic wave through the structure, and responses are measured by an array of PZT sensors. The changes in both wave attenuation and reflection are used to detect and locate the damage. Both the Lamb wave and impedance methods operate in high frequency ranges at which there are measurable changes in structural responses even for incipient damage such as small cracks, debonding, or loose connections. The combination of the local impedance method with the wave propagation based approach allows a better characterization of the system’s structural integrity. The paper concludes with experimental results to demonstrate the feasibility of this integrated active sensing technology. |
| format | Article |
| id | doaj-art-98017abfa2bc49c99c038070fca57b09 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2005-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-98017abfa2bc49c99c038070fca57b092025-02-03T01:11:08ZengWileyShock and Vibration1070-96221875-92032005-01-0112638940510.1155/2005/250912Integrated Structural Health Assessment Using Piezoelectric Active SensorsJeannette R. Wait0Gyuhae Park1Charles R. Farrar2Engineering Sciences & Applications, Weapon Response Group, Los Alamos National Laboratory, Los Alamos, NM 87545, USAEngineering Sciences & Applications, Weapon Response Group, Los Alamos National Laboratory, Los Alamos, NM 87545, USAEngineering Sciences & Applications, Weapon Response Group, Los Alamos National Laboratory, Los Alamos, NM 87545, USAThis paper illustrates an integrated approach for identifying structural damage. The method presented utilizes piezoelectric (PZT) materials to actuate/sense the dynamic response of the structures. Two damage identification techniques are integrated in this study, including impedance methods and Lamb wave propagations. The impedance method monitors the variations in structural mechanical impedance, which is coupled with the electrical impedance of the PZT patch. In Lamb wave propagations, one PZT patch acting as an actuator launches an elastic wave through the structure, and responses are measured by an array of PZT sensors. The changes in both wave attenuation and reflection are used to detect and locate the damage. Both the Lamb wave and impedance methods operate in high frequency ranges at which there are measurable changes in structural responses even for incipient damage such as small cracks, debonding, or loose connections. The combination of the local impedance method with the wave propagation based approach allows a better characterization of the system’s structural integrity. The paper concludes with experimental results to demonstrate the feasibility of this integrated active sensing technology.http://dx.doi.org/10.1155/2005/250912 |
| spellingShingle | Jeannette R. Wait Gyuhae Park Charles R. Farrar Integrated Structural Health Assessment Using Piezoelectric Active Sensors Shock and Vibration |
| title | Integrated Structural Health Assessment Using Piezoelectric Active Sensors |
| title_full | Integrated Structural Health Assessment Using Piezoelectric Active Sensors |
| title_fullStr | Integrated Structural Health Assessment Using Piezoelectric Active Sensors |
| title_full_unstemmed | Integrated Structural Health Assessment Using Piezoelectric Active Sensors |
| title_short | Integrated Structural Health Assessment Using Piezoelectric Active Sensors |
| title_sort | integrated structural health assessment using piezoelectric active sensors |
| url | http://dx.doi.org/10.1155/2005/250912 |
| work_keys_str_mv | AT jeannetterwait integratedstructuralhealthassessmentusingpiezoelectricactivesensors AT gyuhaepark integratedstructuralhealthassessmentusingpiezoelectricactivesensors AT charlesrfarrar integratedstructuralhealthassessmentusingpiezoelectricactivesensors |