An extended thickness-dependent moisture absorption model for unidirectional carbon/epoxy composites
Moisture absorption tests for materials that exhibit non-Fickian behavior generally re-quire a relatively long period to reach saturation. Therefore, it would be beneficial to establish a relationship between the moisture content and the thickness to minimize the experimental time and cost. This res...
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| Format: | Article |
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MDPI AG
2021
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| _version_ | 1796865918475698176 |
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| author | Azizan, Azisyahirah Johar, Mahzan Karam Singh, Salvinder Singh Abdullah, Shahrum Koloor, Seyed Saeid Rahimian |
| author_facet | Azizan, Azisyahirah Johar, Mahzan Karam Singh, Salvinder Singh Abdullah, Shahrum Koloor, Seyed Saeid Rahimian |
| author_sort | Azizan, Azisyahirah |
| collection | ePrints |
| description | Moisture absorption tests for materials that exhibit non-Fickian behavior generally re-quire a relatively long period to reach saturation. Therefore, it would be beneficial to establish a relationship between the moisture content and the thickness to minimize the experimental time and cost. This research characterizes the moisture absorption behavior of AS4/8552 carbon/epoxy composites. Specimens were prepared at 4, 8, and 16 plies and immersed in distilled water at 60?C. The relationship between the non-Fickian parameters (Fickian to non-Fickian maximum moisture content ratio f, non-Fickian diffusivity per square thickness a, and non-Fickian initiation time to ) and thickness was characterized using a thickness-dependent model. A comparison with other materials revealed that all three non-Fickian parameters are able to be fitted using a power law. Nevertheless, the upper boundary for the applicability of this model was not determined in this study. The Weibull distribution plots indicate that the probability of non-Fickian moisture absorption is influenced by f and a at approximately 62% within a normalized thickness range of 2–3. In regards to to, it is 82% at a normalized thickness of 6. Therefore, the Weibull distribution is proposed for the assessment of non-Fickian moisture absorption based on the material’s thickness. |
| first_indexed | 2024-03-05T21:04:24Z |
| format | Article |
| id | utm.eprints-94923 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T21:04:24Z |
| publishDate | 2021 |
| publisher | MDPI AG |
| record_format | dspace |
| spelling | utm.eprints-949232022-04-29T22:22:50Z http://eprints.utm.my/94923/ An extended thickness-dependent moisture absorption model for unidirectional carbon/epoxy composites Azizan, Azisyahirah Johar, Mahzan Karam Singh, Salvinder Singh Abdullah, Shahrum Koloor, Seyed Saeid Rahimian TJ Mechanical engineering and machinery Moisture absorption tests for materials that exhibit non-Fickian behavior generally re-quire a relatively long period to reach saturation. Therefore, it would be beneficial to establish a relationship between the moisture content and the thickness to minimize the experimental time and cost. This research characterizes the moisture absorption behavior of AS4/8552 carbon/epoxy composites. Specimens were prepared at 4, 8, and 16 plies and immersed in distilled water at 60?C. The relationship between the non-Fickian parameters (Fickian to non-Fickian maximum moisture content ratio f, non-Fickian diffusivity per square thickness a, and non-Fickian initiation time to ) and thickness was characterized using a thickness-dependent model. A comparison with other materials revealed that all three non-Fickian parameters are able to be fitted using a power law. Nevertheless, the upper boundary for the applicability of this model was not determined in this study. The Weibull distribution plots indicate that the probability of non-Fickian moisture absorption is influenced by f and a at approximately 62% within a normalized thickness range of 2–3. In regards to to, it is 82% at a normalized thickness of 6. Therefore, the Weibull distribution is proposed for the assessment of non-Fickian moisture absorption based on the material’s thickness. MDPI AG 2021 Article PeerReviewed Azizan, Azisyahirah and Johar, Mahzan and Karam Singh, Salvinder Singh and Abdullah, Shahrum and Koloor, Seyed Saeid Rahimian (2021) An extended thickness-dependent moisture absorption model for unidirectional carbon/epoxy composites. Polymers, 13 (3). pp. 1-13. ISSN 2073-4360 http://dx.doi.org/10.3390/polym13030440 |
| spellingShingle | TJ Mechanical engineering and machinery Azizan, Azisyahirah Johar, Mahzan Karam Singh, Salvinder Singh Abdullah, Shahrum Koloor, Seyed Saeid Rahimian An extended thickness-dependent moisture absorption model for unidirectional carbon/epoxy composites |
| title | An extended thickness-dependent moisture absorption model for unidirectional carbon/epoxy composites |
| title_full | An extended thickness-dependent moisture absorption model for unidirectional carbon/epoxy composites |
| title_fullStr | An extended thickness-dependent moisture absorption model for unidirectional carbon/epoxy composites |
| title_full_unstemmed | An extended thickness-dependent moisture absorption model for unidirectional carbon/epoxy composites |
| title_short | An extended thickness-dependent moisture absorption model for unidirectional carbon/epoxy composites |
| title_sort | extended thickness dependent moisture absorption model for unidirectional carbon epoxy composites |
| topic | TJ Mechanical engineering and machinery |
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