Strain transfer analysis of a clamped fiber Bragg grating sensor
© 2017 by the authors.Clamped fiber Bragg grating (FBG) sensors have been widely applied in engineering strain measurements due to their advantages of high flexibility and efficiency. However, due to the existence of the interlayer, the strain measured by the encapsulated FBG sensor is not equal to...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/51874 |
| _version_ | 1848758795470110720 |
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| author | Sun, L. Li, C. Li, Jun Zhang, C. Ding, X. |
| author_facet | Sun, L. Li, C. Li, Jun Zhang, C. Ding, X. |
| author_sort | Sun, L. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2017 by the authors.Clamped fiber Bragg grating (FBG) sensors have been widely applied in engineering strain measurements due to their advantages of high flexibility and efficiency. However, due to the existence of the interlayer, the strain measured by the encapsulated FBG sensor is not equal to the strain of the host material, which causes strain measurement errors. In this paper, the strain transfer analysis of a clamped FBG sensor based on the shear-lag theory is conducted to improve the accuracy of strain measurements. A novel theoretical model for the axial strain distribution of a clamped FBG sensor is proposed. It is also discussed how the gauge ratio and interlayer thickness affect the strain transfer rate. The accuracy of the proposed theoretical model is verified by experimental tensile tests. The theoretical value of the strain transfer rate matches well with the tested value. |
| first_indexed | 2025-11-14T09:49:40Z |
| format | Journal Article |
| id | curtin-20.500.11937-51874 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:49:40Z |
| publishDate | 2017 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-518742017-09-13T15:37:22Z Strain transfer analysis of a clamped fiber Bragg grating sensor Sun, L. Li, C. Li, Jun Zhang, C. Ding, X. © 2017 by the authors.Clamped fiber Bragg grating (FBG) sensors have been widely applied in engineering strain measurements due to their advantages of high flexibility and efficiency. However, due to the existence of the interlayer, the strain measured by the encapsulated FBG sensor is not equal to the strain of the host material, which causes strain measurement errors. In this paper, the strain transfer analysis of a clamped FBG sensor based on the shear-lag theory is conducted to improve the accuracy of strain measurements. A novel theoretical model for the axial strain distribution of a clamped FBG sensor is proposed. It is also discussed how the gauge ratio and interlayer thickness affect the strain transfer rate. The accuracy of the proposed theoretical model is verified by experimental tensile tests. The theoretical value of the strain transfer rate matches well with the tested value. 2017 Journal Article http://hdl.handle.net/20.500.11937/51874 10.3390/app7020188 unknown |
| spellingShingle | Sun, L. Li, C. Li, Jun Zhang, C. Ding, X. Strain transfer analysis of a clamped fiber Bragg grating sensor |
| title | Strain transfer analysis of a clamped fiber Bragg grating sensor |
| title_full | Strain transfer analysis of a clamped fiber Bragg grating sensor |
| title_fullStr | Strain transfer analysis of a clamped fiber Bragg grating sensor |
| title_full_unstemmed | Strain transfer analysis of a clamped fiber Bragg grating sensor |
| title_short | Strain transfer analysis of a clamped fiber Bragg grating sensor |
| title_sort | strain transfer analysis of a clamped fiber bragg grating sensor |
| url | http://hdl.handle.net/20.500.11937/51874 |