Mode-I interlaminar fracture of carbon fibre reinforced epoxy modified with polycaprolactone as healing agent
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| Format: | Bachelor thesis |
| Language: | ENG |
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Universiti Teknologi Malaysia
2025
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| Online Access: | https://utmik.utm.my/handle/123456789/41779 |
| Abstract | Abstract here |
| _version_ | 1854920812861063168 |
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| author | Fatin Amalin Syahira Adnan |
| author2 | Habibah Ghazali, supervisor |
| author_facet | Habibah Ghazali, supervisor Fatin Amalin Syahira Adnan |
| author_sort | Fatin Amalin Syahira Adnan |
| description | Not available |
| format | Bachelor thesis |
| id | utm-123456789-41779 |
| institution | Universiti Teknologi Malaysia |
| language | ENG |
| publishDate | 2025 |
| publisher | Universiti Teknologi Malaysia |
| record_format | dspace |
| record_pdf | Abstract |
| spelling | utm-123456789-417792025-03-10T18:11:07Z Mode-I interlaminar fracture of carbon fibre reinforced epoxy modified with polycaprolactone as healing agent Fatin Amalin Syahira Adnan Habibah Ghazali, supervisor Mechanical engineering Not available Composite material has become a research interest throughout the year due to its unique properties compared to metal. The major advantages of composite material include strength to weigh ratio, low thermal expansion, corrosion resistance and have attractive appearances. On the other hand, CF/EP composites are very costly and fragile. Lately, there has been a surge in interest in figuring out how to decrease delamination failure, which is the major issue with laminated fibre composites. This failure can cause composite materials to lose their strength, and therefore their function. In the early 2000s, researchers have been working on developing new materials with self-healing abilities by embedding self-healing agents. The purposeof these research is to repair cracks that have already formed and to prevents the growth of cracks in the composite materials by mean of self-healing ability. Thus, this embedded healing agents might be suitable to overcome the delamination problem in the composite materials. In this research, polycaprolactone (PCL) is used as healing agent to investigate mode I interlaminar fracture of CF/EP composites. The objective of this research is to develop thermally activated healing ability in the CF/EP by using interleaves made of PCL/DGEBA blends, determine the fracture toughness of CF/EP embedded with PCL as healing agent and determine the delamination mechanism of the composite material. Carbon fibre prepreg laminates were made by compression moulding for 1 hour at 170 °C with a load of 8.97 MPa, then cooled at room temperature before cutting into the appropriate size for the ASTM D5528 standard test for double cantilever beam (DCB) testing. The thermomechanical analysis was carried out by differential scanning calorimetry (DSC) polycaprolactone/bisphenol A diglycidyl ether (PCL/DGEBA) polymer blend and pure epoxy to find the glass transition temperature (Tg) for both polymer blend and pure epoxy to study the miscibility of the both polymers. Theoretical study was performed on the thermally activated healing ability in the CF/EP by using interleaves made of PCL/DGEBA blends, fracture toughness of CF/EP embedded with PCL as healing agent and delamination mechanism of the composite material. PCL/DGEBA polymer blend was predicted to have thermal activated healing ability due to the presence of PCL as the healing agent in the polymer blend based on the previous research work. On the other hand, the previous research also revealed that the interlaminar fracture toughness decrease after adding PCL content. Based on these findings, it is expected that the synthesis of CF/EP composites interleaves with PCL/DGEBA polymer blend will improve the delamination and stiffness of the composite. fahmimoksen UTM 103 p. Project Paper (Bachelor of Engineering (Mechanical-Materials)) - Universiti Teknologi Malaysia, 2021 2025-03-10T03:06:05Z 2025-03-10T03:06:05Z 2021 Bachelor thesis https://utmik.utm.my/handle/123456789/41779 vital:154193 valet-20231102-084124 ENG Closed Access UTM Complete Unpublished Completion application/pdf Universiti Teknologi Malaysia |
| spellingShingle | Mechanical engineering Fatin Amalin Syahira Adnan Mode-I interlaminar fracture of carbon fibre reinforced epoxy modified with polycaprolactone as healing agent |
| thesis_level |
Other
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| title | Mode-I interlaminar fracture of carbon fibre reinforced epoxy modified with polycaprolactone as healing agent |
| title_full | Mode-I interlaminar fracture of carbon fibre reinforced epoxy modified with polycaprolactone as healing agent |
| title_fullStr | Mode-I interlaminar fracture of carbon fibre reinforced epoxy modified with polycaprolactone as healing agent |
| title_full_unstemmed | Mode-I interlaminar fracture of carbon fibre reinforced epoxy modified with polycaprolactone as healing agent |
| title_short | Mode-I interlaminar fracture of carbon fibre reinforced epoxy modified with polycaprolactone as healing agent |
| title_sort | mode i interlaminar fracture of carbon fibre reinforced epoxy modified with polycaprolactone as healing agent |
| topic | Mechanical engineering |
| url | https://utmik.utm.my/handle/123456789/41779 |
| work_keys_str_mv | AT fatinamalinsyahiraadnan modeiinterlaminarfractureofcarbonfibrereinforcedepoxymodifiedwithpolycaprolactoneashealingagent |