The effect of thermo-oxidative aging on the durability of glass fiber-reinforced epoxy
Thin-skinned organic matrix composites within aeronautical structures are subjected to thermooxidative aging during their service life, leading to reductions in their durability. In this paper, a durability evaluation of fiberglass epoxy prepreg is performed on the original composite thickness befor...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Hindawi Publishing Corporation
2015
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/46572/ http://psasir.upm.edu.my/id/eprint/46572/1/The%20effect%20of%20thermo-oxidative%20aging%20on%20the%20durability%20of%20glass%20fiber-reinforced%20epoxy.pdf |
| _version_ | 1848850689965424640 |
|---|---|
| author | Khajeh, Amin Mustapha, Faizal Hameed Sultan, Mohamed Thariq Banhegyi, Gyorgy Karacsony, Zsuzsanna Baranyai, Viktor |
| author_facet | Khajeh, Amin Mustapha, Faizal Hameed Sultan, Mohamed Thariq Banhegyi, Gyorgy Karacsony, Zsuzsanna Baranyai, Viktor |
| author_sort | Khajeh, Amin |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Thin-skinned organic matrix composites within aeronautical structures are subjected to thermooxidative aging during their service life, leading to reductions in their durability. In this paper, a durability evaluation of fiberglass epoxy prepreg is performed on the original composite thickness before and after 800 h isothermal aging at 82°C. The characterization of both aged and unaged composites comprised tensile tests, DMA, FTIR, weight loss measurements, SEM, and DSC. The tensile strength and modulus of the composites increased after being exposed to pronounced aging conditions, whereas a decrease was observed in the toughness. DMA results revealed that the glass transition temperature and rubbery state modulus increased as a result of the thermooxidative aging. FTIR spectroscopy demonstrated the formation of carbonyl compounds due to oxidation of the chemical structure of the resin. SEM observations indicated the existence of minor superficial cracking and poor fiber-matrix adhesion after aging. In addition, a minor mass change was observed from mass loss monitoring methods. The overall findings suggest that postcuring and physical aging enhanced the brittleness of the resin, leading to a significant decline in the useful structural life of the thin-skinned composite. |
| first_indexed | 2025-11-15T10:10:17Z |
| format | Article |
| id | upm-46572 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:10:17Z |
| publishDate | 2015 |
| publisher | Hindawi Publishing Corporation |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-465722018-02-26T04:19:23Z http://psasir.upm.edu.my/id/eprint/46572/ The effect of thermo-oxidative aging on the durability of glass fiber-reinforced epoxy Khajeh, Amin Mustapha, Faizal Hameed Sultan, Mohamed Thariq Banhegyi, Gyorgy Karacsony, Zsuzsanna Baranyai, Viktor Thin-skinned organic matrix composites within aeronautical structures are subjected to thermooxidative aging during their service life, leading to reductions in their durability. In this paper, a durability evaluation of fiberglass epoxy prepreg is performed on the original composite thickness before and after 800 h isothermal aging at 82°C. The characterization of both aged and unaged composites comprised tensile tests, DMA, FTIR, weight loss measurements, SEM, and DSC. The tensile strength and modulus of the composites increased after being exposed to pronounced aging conditions, whereas a decrease was observed in the toughness. DMA results revealed that the glass transition temperature and rubbery state modulus increased as a result of the thermooxidative aging. FTIR spectroscopy demonstrated the formation of carbonyl compounds due to oxidation of the chemical structure of the resin. SEM observations indicated the existence of minor superficial cracking and poor fiber-matrix adhesion after aging. In addition, a minor mass change was observed from mass loss monitoring methods. The overall findings suggest that postcuring and physical aging enhanced the brittleness of the resin, leading to a significant decline in the useful structural life of the thin-skinned composite. Hindawi Publishing Corporation 2015 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/46572/1/The%20effect%20of%20thermo-oxidative%20aging%20on%20the%20durability%20of%20glass%20fiber-reinforced%20epoxy.pdf Khajeh, Amin and Mustapha, Faizal and Hameed Sultan, Mohamed Thariq and Banhegyi, Gyorgy and Karacsony, Zsuzsanna and Baranyai, Viktor (2015) The effect of thermo-oxidative aging on the durability of glass fiber-reinforced epoxy. Advances in Materials Science and Engineering, 2015. art. no. 372354. pp. 1-13. ISSN 1687-8434; ESSN: 1687-8442 http://www.hindawi.com/journals/amse/ 10.1155/2015/372354 |
| spellingShingle | Khajeh, Amin Mustapha, Faizal Hameed Sultan, Mohamed Thariq Banhegyi, Gyorgy Karacsony, Zsuzsanna Baranyai, Viktor The effect of thermo-oxidative aging on the durability of glass fiber-reinforced epoxy |
| title | The effect of thermo-oxidative aging on the durability of glass fiber-reinforced epoxy |
| title_full | The effect of thermo-oxidative aging on the durability of glass fiber-reinforced epoxy |
| title_fullStr | The effect of thermo-oxidative aging on the durability of glass fiber-reinforced epoxy |
| title_full_unstemmed | The effect of thermo-oxidative aging on the durability of glass fiber-reinforced epoxy |
| title_short | The effect of thermo-oxidative aging on the durability of glass fiber-reinforced epoxy |
| title_sort | effect of thermo-oxidative aging on the durability of glass fiber-reinforced epoxy |
| url | http://psasir.upm.edu.my/id/eprint/46572/ http://psasir.upm.edu.my/id/eprint/46572/ http://psasir.upm.edu.my/id/eprint/46572/ http://psasir.upm.edu.my/id/eprint/46572/1/The%20effect%20of%20thermo-oxidative%20aging%20on%20the%20durability%20of%20glass%20fiber-reinforced%20epoxy.pdf |