Monitoring the repair process of internal microdamages in thermoplastic composites using optical coherence tomography
The reliability of composite structures critically depends on effective damage repair. This study employs optical coherence tomography (OCT), a non-destructive imaging technique capable of generating cross-sectional images of translucent materials, to investigate the repair of early-stage microdamag...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Polymer Testing |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142941825000030 |
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| author | Pinbo Huang Changhao Wang Weirui Zhang Zihao Ni Rufeng You |
| author_facet | Pinbo Huang Changhao Wang Weirui Zhang Zihao Ni Rufeng You |
| author_sort | Pinbo Huang |
| collection | DOAJ |
| description | The reliability of composite structures critically depends on effective damage repair. This study employs optical coherence tomography (OCT), a non-destructive imaging technique capable of generating cross-sectional images of translucent materials, to investigate the repair of early-stage microdamage in thermoplastic composites. Using electrical resistance heating, the healing of a microscale void in a carbon fiber-reinforced ethylene-vinyl acetate (EVA) polymer sample was monitored through OCT-derived scattered light intensity and phase difference measurements. Firstly, the void healing process was observed using a self-developed OCT system. Repair parameters, including initiation and completion times, were then estimated from the scattered light intensity changes in the defective region. Additionally, phase-contrast imaging was utilized to analyze phase difference patterns, enabling the computation of displacement fields across the defective cross-section and providing quantitative insights into the healing dynamics. The findings demonstrate the efficacy of OCT in monitoring and characterizing the repair processes of composite materials, highlighting its potential as a valuable tool in structural health assessment. |
| format | Article |
| id | doaj-art-d9fe6e4cc60e4fbc89e809d76f2a81e5 |
| institution | Kabale University |
| issn | 1873-2348 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Polymer Testing |
| spelling | doaj-art-d9fe6e4cc60e4fbc89e809d76f2a81e52025-01-13T04:18:18ZengElsevierPolymer Testing1873-23482025-02-01143108689Monitoring the repair process of internal microdamages in thermoplastic composites using optical coherence tomographyPinbo Huang0Changhao Wang1Weirui Zhang2Zihao Ni3Rufeng You4School of Aviation Maintenance Engineering, Chengdu Aeronautic Polytechnic, Chengdu, 610100, China; Corresponding author.School of Aviation Maintenance Engineering, Chengdu Aeronautic Polytechnic, Chengdu, 610100, ChinaSchool of Aviation Maintenance Engineering, Chengdu Aeronautic Polytechnic, Chengdu, 610100, ChinaSchool of Automation, Guangdong University of Technology, Guangzhou, 510006, ChinaSchool of Automation, Guangdong University of Technology, Guangzhou, 510006, ChinaThe reliability of composite structures critically depends on effective damage repair. This study employs optical coherence tomography (OCT), a non-destructive imaging technique capable of generating cross-sectional images of translucent materials, to investigate the repair of early-stage microdamage in thermoplastic composites. Using electrical resistance heating, the healing of a microscale void in a carbon fiber-reinforced ethylene-vinyl acetate (EVA) polymer sample was monitored through OCT-derived scattered light intensity and phase difference measurements. Firstly, the void healing process was observed using a self-developed OCT system. Repair parameters, including initiation and completion times, were then estimated from the scattered light intensity changes in the defective region. Additionally, phase-contrast imaging was utilized to analyze phase difference patterns, enabling the computation of displacement fields across the defective cross-section and providing quantitative insights into the healing dynamics. The findings demonstrate the efficacy of OCT in monitoring and characterizing the repair processes of composite materials, highlighting its potential as a valuable tool in structural health assessment.http://www.sciencedirect.com/science/article/pii/S0142941825000030Optical coherence tomographyPhase-contrastDamage repairComposites |
| spellingShingle | Pinbo Huang Changhao Wang Weirui Zhang Zihao Ni Rufeng You Monitoring the repair process of internal microdamages in thermoplastic composites using optical coherence tomography Polymer Testing Optical coherence tomography Phase-contrast Damage repair Composites |
| title | Monitoring the repair process of internal microdamages in thermoplastic composites using optical coherence tomography |
| title_full | Monitoring the repair process of internal microdamages in thermoplastic composites using optical coherence tomography |
| title_fullStr | Monitoring the repair process of internal microdamages in thermoplastic composites using optical coherence tomography |
| title_full_unstemmed | Monitoring the repair process of internal microdamages in thermoplastic composites using optical coherence tomography |
| title_short | Monitoring the repair process of internal microdamages in thermoplastic composites using optical coherence tomography |
| title_sort | monitoring the repair process of internal microdamages in thermoplastic composites using optical coherence tomography |
| topic | Optical coherence tomography Phase-contrast Damage repair Composites |
| url | http://www.sciencedirect.com/science/article/pii/S0142941825000030 |
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