Stress Measurement of Steel Strands Based on System Identification Method
Steel strands are crucial components of a prestressed structure, but their performance degrades inevitably with time. Among the existing nondestructive testing methods for measuring the stress state of steel strands, ultrasonic guided wave methods have received the most research attention and are mo...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2019-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2019/5653902 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832563800140677120 |
|---|---|
| author | Ji Qian Jianbin Li Changchun Li Jianting Zhou Guowen Yao |
| author_facet | Ji Qian Jianbin Li Changchun Li Jianting Zhou Guowen Yao |
| author_sort | Ji Qian |
| collection | DOAJ |
| description | Steel strands are crucial components of a prestressed structure, but their performance degrades inevitably with time. Among the existing nondestructive testing methods for measuring the stress state of steel strands, ultrasonic guided wave methods have received the most research attention and are most likely to be applied to actual engineering. This work views the propagation of ultrasonic guided wave as an individual system, and the variations in the stress state in steel strands can be related to the parameters gained by the system identification model. The finite element simulation and experimental results show the propagation characteristics of the guided wave are influenced distinctly by the stress state. The index constructed by the system parameters exhibits good monotonic linear with stress level variation, and the slope of the fitted line from experimental data is similar to the simulation result. The sensor placement and loading path have a limited effect on the stress state and the proposed index. |
| format | Article |
| id | doaj-art-bebaf4e343cf443984bdba1dcc96b2f2 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-bebaf4e343cf443984bdba1dcc96b2f22025-02-03T01:12:30ZengWileyShock and Vibration1070-96221875-92032019-01-01201910.1155/2019/56539025653902Stress Measurement of Steel Strands Based on System Identification MethodJi Qian0Jianbin Li1Changchun Li2Jianting Zhou3Guowen Yao4State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing, 400074, ChinaCollege of Civil Engineering, Chongqing Jiaotong University, Chongqing, 400074, ChinaCollege of Civil Engineering, Chongqing Jiaotong University, Chongqing, 400074, ChinaState Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing, 400074, ChinaState Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing, 400074, ChinaSteel strands are crucial components of a prestressed structure, but their performance degrades inevitably with time. Among the existing nondestructive testing methods for measuring the stress state of steel strands, ultrasonic guided wave methods have received the most research attention and are most likely to be applied to actual engineering. This work views the propagation of ultrasonic guided wave as an individual system, and the variations in the stress state in steel strands can be related to the parameters gained by the system identification model. The finite element simulation and experimental results show the propagation characteristics of the guided wave are influenced distinctly by the stress state. The index constructed by the system parameters exhibits good monotonic linear with stress level variation, and the slope of the fitted line from experimental data is similar to the simulation result. The sensor placement and loading path have a limited effect on the stress state and the proposed index.http://dx.doi.org/10.1155/2019/5653902 |
| spellingShingle | Ji Qian Jianbin Li Changchun Li Jianting Zhou Guowen Yao Stress Measurement of Steel Strands Based on System Identification Method Shock and Vibration |
| title | Stress Measurement of Steel Strands Based on System Identification Method |
| title_full | Stress Measurement of Steel Strands Based on System Identification Method |
| title_fullStr | Stress Measurement of Steel Strands Based on System Identification Method |
| title_full_unstemmed | Stress Measurement of Steel Strands Based on System Identification Method |
| title_short | Stress Measurement of Steel Strands Based on System Identification Method |
| title_sort | stress measurement of steel strands based on system identification method |
| url | http://dx.doi.org/10.1155/2019/5653902 |
| work_keys_str_mv | AT jiqian stressmeasurementofsteelstrandsbasedonsystemidentificationmethod AT jianbinli stressmeasurementofsteelstrandsbasedonsystemidentificationmethod AT changchunli stressmeasurementofsteelstrandsbasedonsystemidentificationmethod AT jiantingzhou stressmeasurementofsteelstrandsbasedonsystemidentificationmethod AT guowenyao stressmeasurementofsteelstrandsbasedonsystemidentificationmethod |