Characterization of Mode I and Mode II Interlaminar Fracture Toughness in CNT-Enhanced CFRP under Various Temperature and Loading Rates
This study investigates the influence of temperature and loading rate on the Mode I and Mode II interlaminar fracture behavior of carbon-nanotubes-enhanced carbon-fiber-reinforced polymer (CNT-CFRP). CNT-induced toughening of the epoxy matrix is characterized by producing CFRP with varying loading o...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/13/11/1729 |
| _version_ | 1797597025550729216 |
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| author | Burak Yenigun Muhammad Salman Chaudhry Elli Gkouti Aleksander Czekanski |
| author_facet | Burak Yenigun Muhammad Salman Chaudhry Elli Gkouti Aleksander Czekanski |
| author_sort | Burak Yenigun |
| collection | DOAJ |
| description | This study investigates the influence of temperature and loading rate on the Mode I and Mode II interlaminar fracture behavior of carbon-nanotubes-enhanced carbon-fiber-reinforced polymer (CNT-CFRP). CNT-induced toughening of the epoxy matrix is characterized by producing CFRP with varying loading of CNT areal density. CNT-CFRP samples were subjected to varying loading rates and testing temperatures. Fracture surfaces of CNT-CFRP were analyzed using scanning electron microscopy (SEM) imaging. Mode I and Mode II interlaminar fracture toughness increased with increasing amount of CNT to an optimum value of 1 g/m<sup>2</sup>, then decreased at higher CNT amounts. Moreover, it was found that CNT-CFRP fracture toughness increased linearly with the loading rate in Mode I and Mode II. On the other hand, different responses to changing temperature were observed; Mode I fracture toughness increased when elevating the temperature, while Mode II fracture toughness increased with increasing up to room temperature and decreased at higher temperatures. |
| first_indexed | 2024-03-11T03:00:58Z |
| format | Article |
| id | doaj.art-b3b79ea8d3fb428e9bd2c78fd5069e43 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-11T03:00:58Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-b3b79ea8d3fb428e9bd2c78fd5069e432023-11-18T08:18:44ZengMDPI AGNanomaterials2079-49912023-05-011311172910.3390/nano13111729Characterization of Mode I and Mode II Interlaminar Fracture Toughness in CNT-Enhanced CFRP under Various Temperature and Loading RatesBurak Yenigun0Muhammad Salman Chaudhry1Elli Gkouti2Aleksander Czekanski3Department of Mechanical Engineering, York University, Toronto, ON M3J 1P3, CanadaDepartment of Mechanical Engineering, York University, Toronto, ON M3J 1P3, CanadaDepartment of Mechanical Engineering, York University, Toronto, ON M3J 1P3, CanadaDepartment of Mechanical Engineering, York University, Toronto, ON M3J 1P3, CanadaThis study investigates the influence of temperature and loading rate on the Mode I and Mode II interlaminar fracture behavior of carbon-nanotubes-enhanced carbon-fiber-reinforced polymer (CNT-CFRP). CNT-induced toughening of the epoxy matrix is characterized by producing CFRP with varying loading of CNT areal density. CNT-CFRP samples were subjected to varying loading rates and testing temperatures. Fracture surfaces of CNT-CFRP were analyzed using scanning electron microscopy (SEM) imaging. Mode I and Mode II interlaminar fracture toughness increased with increasing amount of CNT to an optimum value of 1 g/m<sup>2</sup>, then decreased at higher CNT amounts. Moreover, it was found that CNT-CFRP fracture toughness increased linearly with the loading rate in Mode I and Mode II. On the other hand, different responses to changing temperature were observed; Mode I fracture toughness increased when elevating the temperature, while Mode II fracture toughness increased with increasing up to room temperature and decreased at higher temperatures.https://www.mdpi.com/2079-4991/13/11/1729carbon nanotubes (CNT)Mode I interlaminar fracture toughnessMode II interlaminar fracture toughnessdouble cantabile beam (DCB)end-notched flexure (ENF) |
| spellingShingle | Burak Yenigun Muhammad Salman Chaudhry Elli Gkouti Aleksander Czekanski Characterization of Mode I and Mode II Interlaminar Fracture Toughness in CNT-Enhanced CFRP under Various Temperature and Loading Rates Nanomaterials carbon nanotubes (CNT) Mode I interlaminar fracture toughness Mode II interlaminar fracture toughness double cantabile beam (DCB) end-notched flexure (ENF) |
| title | Characterization of Mode I and Mode II Interlaminar Fracture Toughness in CNT-Enhanced CFRP under Various Temperature and Loading Rates |
| title_full | Characterization of Mode I and Mode II Interlaminar Fracture Toughness in CNT-Enhanced CFRP under Various Temperature and Loading Rates |
| title_fullStr | Characterization of Mode I and Mode II Interlaminar Fracture Toughness in CNT-Enhanced CFRP under Various Temperature and Loading Rates |
| title_full_unstemmed | Characterization of Mode I and Mode II Interlaminar Fracture Toughness in CNT-Enhanced CFRP under Various Temperature and Loading Rates |
| title_short | Characterization of Mode I and Mode II Interlaminar Fracture Toughness in CNT-Enhanced CFRP under Various Temperature and Loading Rates |
| title_sort | characterization of mode i and mode ii interlaminar fracture toughness in cnt enhanced cfrp under various temperature and loading rates |
| topic | carbon nanotubes (CNT) Mode I interlaminar fracture toughness Mode II interlaminar fracture toughness double cantabile beam (DCB) end-notched flexure (ENF) |
| url | https://www.mdpi.com/2079-4991/13/11/1729 |
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