Influence of moisture absorption on mechanical properties and damage mechanisms of three-dimensional six-directional braided composites under hydrostatic pressure
Fibre-reinforced composites have shown a growing interest in pressure-resistant materials for deep-sea use due to their excellent properties. This paper presents the influence of the moisture absorption on the mechanical properties and damage mechanisms of three-dimensional six-directional (3D6D) br...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-10-01
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| Series: | Polymer Testing |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S014294182200215X |
| _version_ | 1829099326705500160 |
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| author | Xiaoxu Wang Xiaodong Liu Dongyan Liu Zunqin Wang Yanan Zhu Kun Qian Diantang Zhang |
| author_facet | Xiaoxu Wang Xiaodong Liu Dongyan Liu Zunqin Wang Yanan Zhu Kun Qian Diantang Zhang |
| author_sort | Xiaoxu Wang |
| collection | DOAJ |
| description | Fibre-reinforced composites have shown a growing interest in pressure-resistant materials for deep-sea use due to their excellent properties. This paper presents the influence of the moisture absorption on the mechanical properties and damage mechanisms of three-dimensional six-directional (3D6D) braided composites under hydrostatic pressure. The bisphenol A epoxy resin, bisphenol F epoxy resin, and hydrogenated bisphenol A epoxy resin, are chosen. SEM and X-ray Micro-CT are employed to investigate the moisture absorption, tensile and compressive damage before and after subjecting to the hydrostatic pressure. Results show that the bisphenol F carbon/epoxy composite has the lowest porosity at 0.082% among the three composite materials. The average moisture absorption was the lowest at 0.3755%. Furthermore, moisture is mainly transported along micro cracks in the matrix and the fiber-matrix interface under hydrostatic pressure. After the composites absorb moisture, the average tensile strength retention rates of bisphenol A carbon/epoxy composite, bisphenol F carbon/epoxy composite, and hydrogenated bisphenol A carbon/epoxy composites drop to 88.282%, 76.34%, and 66.43%, respectively. Moreover, their average compressive strength retention rates drop to 53.15%, 74.26%, and 83.45%, respectively. The tensile and compressive strengths of the 3D6D braided composites decreased significantly after moisture absorption, mainly due to fiber-matrix debonding and matrix cracking. |
| first_indexed | 2024-12-10T21:21:57Z |
| format | Article |
| id | doaj.art-4221eab33fbc44d29d8d6196fe107752 |
| institution | Directory Open Access Journal |
| issn | 0142-9418 |
| language | English |
| last_indexed | 2024-12-10T21:21:57Z |
| publishDate | 2022-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Polymer Testing |
| spelling | doaj.art-4221eab33fbc44d29d8d6196fe1077522022-12-22T01:33:06ZengElsevierPolymer Testing0142-94182022-10-01114107693Influence of moisture absorption on mechanical properties and damage mechanisms of three-dimensional six-directional braided composites under hydrostatic pressureXiaoxu Wang0Xiaodong Liu1Dongyan Liu2Zunqin Wang3Yanan Zhu4Kun Qian5Diantang Zhang6Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, 214122, ChinaKey Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, 214122, ChinaKey Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, 214122, ChinaKey Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, 214122, ChinaKey Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, 214122, ChinaCorresponding author.; Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, 214122, ChinaCorresponding author.; Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi, 214122, ChinaFibre-reinforced composites have shown a growing interest in pressure-resistant materials for deep-sea use due to their excellent properties. This paper presents the influence of the moisture absorption on the mechanical properties and damage mechanisms of three-dimensional six-directional (3D6D) braided composites under hydrostatic pressure. The bisphenol A epoxy resin, bisphenol F epoxy resin, and hydrogenated bisphenol A epoxy resin, are chosen. SEM and X-ray Micro-CT are employed to investigate the moisture absorption, tensile and compressive damage before and after subjecting to the hydrostatic pressure. Results show that the bisphenol F carbon/epoxy composite has the lowest porosity at 0.082% among the three composite materials. The average moisture absorption was the lowest at 0.3755%. Furthermore, moisture is mainly transported along micro cracks in the matrix and the fiber-matrix interface under hydrostatic pressure. After the composites absorb moisture, the average tensile strength retention rates of bisphenol A carbon/epoxy composite, bisphenol F carbon/epoxy composite, and hydrogenated bisphenol A carbon/epoxy composites drop to 88.282%, 76.34%, and 66.43%, respectively. Moreover, their average compressive strength retention rates drop to 53.15%, 74.26%, and 83.45%, respectively. The tensile and compressive strengths of the 3D6D braided composites decreased significantly after moisture absorption, mainly due to fiber-matrix debonding and matrix cracking.http://www.sciencedirect.com/science/article/pii/S014294182200215XThree-dimensional braided compositesHydrostatic pressureMoisture absorptionMechanical propertiesFailure mechanism |
| spellingShingle | Xiaoxu Wang Xiaodong Liu Dongyan Liu Zunqin Wang Yanan Zhu Kun Qian Diantang Zhang Influence of moisture absorption on mechanical properties and damage mechanisms of three-dimensional six-directional braided composites under hydrostatic pressure Polymer Testing Three-dimensional braided composites Hydrostatic pressure Moisture absorption Mechanical properties Failure mechanism |
| title | Influence of moisture absorption on mechanical properties and damage mechanisms of three-dimensional six-directional braided composites under hydrostatic pressure |
| title_full | Influence of moisture absorption on mechanical properties and damage mechanisms of three-dimensional six-directional braided composites under hydrostatic pressure |
| title_fullStr | Influence of moisture absorption on mechanical properties and damage mechanisms of three-dimensional six-directional braided composites under hydrostatic pressure |
| title_full_unstemmed | Influence of moisture absorption on mechanical properties and damage mechanisms of three-dimensional six-directional braided composites under hydrostatic pressure |
| title_short | Influence of moisture absorption on mechanical properties and damage mechanisms of three-dimensional six-directional braided composites under hydrostatic pressure |
| title_sort | influence of moisture absorption on mechanical properties and damage mechanisms of three dimensional six directional braided composites under hydrostatic pressure |
| topic | Three-dimensional braided composites Hydrostatic pressure Moisture absorption Mechanical properties Failure mechanism |
| url | http://www.sciencedirect.com/science/article/pii/S014294182200215X |
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