Effects of Z-pin on moisture absorption property and damage mode under flexural load for carbon fiber composite
The effect of carbon fiber Z-pin on carbon fiber composite under moisture condition with and without flexural load was investigated in this work. Moisture absorption property and crack propagation of carbon fiber reinforced epoxy matrix composite and Z-pinned composite were evaluated under moisture...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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De Gruyter
2022-07-01
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| Series: | Science and Engineering of Composite Materials |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/secm-2022-0020 |
| _version_ | 1818027243904958464 |
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| author | Fan Yansheng Li Min Gu Yizhuo Wang Shaokai Wang Yanjie |
| author_facet | Fan Yansheng Li Min Gu Yizhuo Wang Shaokai Wang Yanjie |
| author_sort | Fan Yansheng |
| collection | DOAJ |
| description | The effect of carbon fiber Z-pin on carbon fiber composite under moisture condition with and without flexural load was investigated in this work. Moisture absorption property and crack propagation of carbon fiber reinforced epoxy matrix composite and Z-pinned composite were evaluated under moisture only and moisture-coupled load conditions. The moisture property was evaluated by moisture content and microscopic morphology obtained using X-ray micro-computed tomography (X-ray μCT). The microstructures inside composites and Z-pinned composites after moisture conditions and three-point flexural test were detected using X-ray μCT and optical microscope. It illustrates that the moisture content of Z-pinned composites is higher due to the rich-resin pocket brought by the implantation of Z-pin. The cracks are obvious inside Z-pinned composites after moisture-coupled load conditions. It is attributed to the implantation of each pin which is the weak point for stress concentration and crack formation. Failure morphologies on the surface of composites and Z-pinned composites are different under different moisture conditions. Less macro-interlayer cracks are detected on the surface of Z-pinned composites, and plenty of microcracks initiating from pins are observed. |
| first_indexed | 2024-12-10T04:44:49Z |
| format | Article |
| id | doaj.art-f0da22c90d884d9da1ef2f348d5af977 |
| institution | Directory Open Access Journal |
| issn | 2191-0359 |
| language | English |
| last_indexed | 2024-12-10T04:44:49Z |
| publishDate | 2022-07-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Science and Engineering of Composite Materials |
| spelling | doaj.art-f0da22c90d884d9da1ef2f348d5af9772022-12-22T02:01:46ZengDe GruyterScience and Engineering of Composite Materials2191-03592022-07-0129120621410.1515/secm-2022-0020Effects of Z-pin on moisture absorption property and damage mode under flexural load for carbon fiber compositeFan Yansheng0Li Min1Gu Yizhuo2Wang Shaokai3Wang Yanjie4Key Laboratory of Aerospace Advanced Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing, 100191, ChinaKey Laboratory of Aerospace Advanced Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing, 100191, ChinaResearch Institute for Frontier Science, Beihang University, Beijing, 100191, ChinaKey Laboratory of Aerospace Advanced Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing, 100191, ChinaResearch Institute for Frontier Science, Beihang University, Beijing, 100191, ChinaThe effect of carbon fiber Z-pin on carbon fiber composite under moisture condition with and without flexural load was investigated in this work. Moisture absorption property and crack propagation of carbon fiber reinforced epoxy matrix composite and Z-pinned composite were evaluated under moisture only and moisture-coupled load conditions. The moisture property was evaluated by moisture content and microscopic morphology obtained using X-ray micro-computed tomography (X-ray μCT). The microstructures inside composites and Z-pinned composites after moisture conditions and three-point flexural test were detected using X-ray μCT and optical microscope. It illustrates that the moisture content of Z-pinned composites is higher due to the rich-resin pocket brought by the implantation of Z-pin. The cracks are obvious inside Z-pinned composites after moisture-coupled load conditions. It is attributed to the implantation of each pin which is the weak point for stress concentration and crack formation. Failure morphologies on the surface of composites and Z-pinned composites are different under different moisture conditions. Less macro-interlayer cracks are detected on the surface of Z-pinned composites, and plenty of microcracks initiating from pins are observed.https://doi.org/10.1515/secm-2022-0020carbon fiber compositesz-pinx-ray μctflexural loadmoisture absorption |
| spellingShingle | Fan Yansheng Li Min Gu Yizhuo Wang Shaokai Wang Yanjie Effects of Z-pin on moisture absorption property and damage mode under flexural load for carbon fiber composite Science and Engineering of Composite Materials carbon fiber composites z-pin x-ray μct flexural load moisture absorption |
| title | Effects of Z-pin on moisture absorption property and damage mode under flexural load for carbon fiber composite |
| title_full | Effects of Z-pin on moisture absorption property and damage mode under flexural load for carbon fiber composite |
| title_fullStr | Effects of Z-pin on moisture absorption property and damage mode under flexural load for carbon fiber composite |
| title_full_unstemmed | Effects of Z-pin on moisture absorption property and damage mode under flexural load for carbon fiber composite |
| title_short | Effects of Z-pin on moisture absorption property and damage mode under flexural load for carbon fiber composite |
| title_sort | effects of z pin on moisture absorption property and damage mode under flexural load for carbon fiber composite |
| topic | carbon fiber composites z-pin x-ray μct flexural load moisture absorption |
| url | https://doi.org/10.1515/secm-2022-0020 |
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