Structural Health Monitoring in Composite Structures by Fiber-Optic Sensors
Fiber-optic sensors cannot measure damage; to get information about damage from strain measurements, additional strategies are needed, and several alternatives are available in the existing literature. This paper discusses two independent procedures. The first is based on detecting new strains appea...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2018-04-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/18/4/1094 |
| _version_ | 1811185237890170880 |
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| author | Alfredo Güemes Antonio Fernández-López Patricia F. Díaz-Maroto Angel Lozano Julian Sierra-Perez |
| author_facet | Alfredo Güemes Antonio Fernández-López Patricia F. Díaz-Maroto Angel Lozano Julian Sierra-Perez |
| author_sort | Alfredo Güemes |
| collection | DOAJ |
| description | Fiber-optic sensors cannot measure damage; to get information about damage from strain measurements, additional strategies are needed, and several alternatives are available in the existing literature. This paper discusses two independent procedures. The first is based on detecting new strains appearing around a damage spot. The structure does not need to be under loads, the technique is very robust, and damage detectability is high, but it requires sensors to be located very close to the damage, so it is a local technique. The second approach offers wider coverage of the structure; it is based on identifying the changes caused by damage on the strain field in the whole structure for similar external loads. Damage location does not need to be known a priori, and detectability is dependent upon the sensor’s network density, the damage size, and the external loads. Examples of application to real structures are given. |
| first_indexed | 2024-04-11T13:26:04Z |
| format | Article |
| id | doaj.art-c7b49f291d6645959be14d26465531dd |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T13:26:04Z |
| publishDate | 2018-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-c7b49f291d6645959be14d26465531dd2022-12-22T04:22:04ZengMDPI AGSensors1424-82202018-04-01184109410.3390/s18041094s18041094Structural Health Monitoring in Composite Structures by Fiber-Optic SensorsAlfredo Güemes0Antonio Fernández-López1Patricia F. Díaz-Maroto2Angel Lozano3Julian Sierra-Perez4Department Aeronautics, Polytechnic University of Madrid, 28040 Madrid, SpainDepartment Aeronautics, Polytechnic University of Madrid, 28040 Madrid, SpainDepartment Aeronautics, Polytechnic University of Madrid, 28040 Madrid, SpainDepartment Aeronautics, Polytechnic University of Madrid, 28040 Madrid, SpainIngeniería Aeroespacial, Universidad Pontificia Bolivariana, Medellín 050031, ColombiaFiber-optic sensors cannot measure damage; to get information about damage from strain measurements, additional strategies are needed, and several alternatives are available in the existing literature. This paper discusses two independent procedures. The first is based on detecting new strains appearing around a damage spot. The structure does not need to be under loads, the technique is very robust, and damage detectability is high, but it requires sensors to be located very close to the damage, so it is a local technique. The second approach offers wider coverage of the structure; it is based on identifying the changes caused by damage on the strain field in the whole structure for similar external loads. Damage location does not need to be known a priori, and detectability is dependent upon the sensor’s network density, the damage size, and the external loads. Examples of application to real structures are given.http://www.mdpi.com/1424-8220/18/4/1094structural health monitoring (SHM)distributed sensingprincipal component analysis (PCA) |
| spellingShingle | Alfredo Güemes Antonio Fernández-López Patricia F. Díaz-Maroto Angel Lozano Julian Sierra-Perez Structural Health Monitoring in Composite Structures by Fiber-Optic Sensors Sensors structural health monitoring (SHM) distributed sensing principal component analysis (PCA) |
| title | Structural Health Monitoring in Composite Structures by Fiber-Optic Sensors |
| title_full | Structural Health Monitoring in Composite Structures by Fiber-Optic Sensors |
| title_fullStr | Structural Health Monitoring in Composite Structures by Fiber-Optic Sensors |
| title_full_unstemmed | Structural Health Monitoring in Composite Structures by Fiber-Optic Sensors |
| title_short | Structural Health Monitoring in Composite Structures by Fiber-Optic Sensors |
| title_sort | structural health monitoring in composite structures by fiber optic sensors |
| topic | structural health monitoring (SHM) distributed sensing principal component analysis (PCA) |
| url | http://www.mdpi.com/1424-8220/18/4/1094 |
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