Effect of Pore Defects on Mechanical Properties of Graphene Reinforced Aluminum Nanocomposites
Pore defects have an important effect on the mechanical properties of graphene reinforced aluminum nanocomposites. The simulation study found that the pores affect the stress distribution in the matrix of the composite. Along the stretching direction, the larger stress appears on both sides of the p...
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MDPI AG
2020-04-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/10/4/468 |
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| author | Duosheng Li Shengli Song Dunwen Zuo Wenzheng Wu |
| author_facet | Duosheng Li Shengli Song Dunwen Zuo Wenzheng Wu |
| author_sort | Duosheng Li |
| collection | DOAJ |
| description | Pore defects have an important effect on the mechanical properties of graphene reinforced aluminum nanocomposites. The simulation study found that the pores affect the stress distribution in the matrix of the composite. Along the stretching direction, the larger stress appears on both sides of the pore, which is the source of potential cracks. It results in a sharp decrease in the mechanical properties of the composite. The higher the porosity, the greater the tendency of pore aggregation, and the risk of material failure is higher. The stress distribution in the matrix becomes more uneven as the pore size increases, and the large strain area around the pores also increases. Composites with circular pores have a higher strength than other irregularly shaped pores. The failure mode might be pore cracking, while composites with other shape pores are more prone to interface detachment. The simulation value of the stress-strain of the composite material is in good agreement with the experimental value, but the finite element simulation value is larger than the experimental value. |
| first_indexed | 2024-03-10T20:43:07Z |
| format | Article |
| id | doaj.art-96fe7a1dd33746ea982f57b31aa4359a |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T20:43:07Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-96fe7a1dd33746ea982f57b31aa4359a2023-11-19T20:33:51ZengMDPI AGMetals2075-47012020-04-0110446810.3390/met10040468Effect of Pore Defects on Mechanical Properties of Graphene Reinforced Aluminum NanocompositesDuosheng Li0Shengli Song1Dunwen Zuo2Wenzheng Wu3School of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, ChinaSchool of Mechanical and Electrical Engineering, Army Engineering University of PLA, Nanjing 210016, ChinaDepartment of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaSchool of Materials Science and Engineering, Nanchang Hangkong University, Nanchang 330063, ChinaPore defects have an important effect on the mechanical properties of graphene reinforced aluminum nanocomposites. The simulation study found that the pores affect the stress distribution in the matrix of the composite. Along the stretching direction, the larger stress appears on both sides of the pore, which is the source of potential cracks. It results in a sharp decrease in the mechanical properties of the composite. The higher the porosity, the greater the tendency of pore aggregation, and the risk of material failure is higher. The stress distribution in the matrix becomes more uneven as the pore size increases, and the large strain area around the pores also increases. Composites with circular pores have a higher strength than other irregularly shaped pores. The failure mode might be pore cracking, while composites with other shape pores are more prone to interface detachment. The simulation value of the stress-strain of the composite material is in good agreement with the experimental value, but the finite element simulation value is larger than the experimental value.https://www.mdpi.com/2075-4701/10/4/468graphenepore defectnanocompositessimulationstress |
| spellingShingle | Duosheng Li Shengli Song Dunwen Zuo Wenzheng Wu Effect of Pore Defects on Mechanical Properties of Graphene Reinforced Aluminum Nanocomposites Metals graphene pore defect nanocomposites simulation stress |
| title | Effect of Pore Defects on Mechanical Properties of Graphene Reinforced Aluminum Nanocomposites |
| title_full | Effect of Pore Defects on Mechanical Properties of Graphene Reinforced Aluminum Nanocomposites |
| title_fullStr | Effect of Pore Defects on Mechanical Properties of Graphene Reinforced Aluminum Nanocomposites |
| title_full_unstemmed | Effect of Pore Defects on Mechanical Properties of Graphene Reinforced Aluminum Nanocomposites |
| title_short | Effect of Pore Defects on Mechanical Properties of Graphene Reinforced Aluminum Nanocomposites |
| title_sort | effect of pore defects on mechanical properties of graphene reinforced aluminum nanocomposites |
| topic | graphene pore defect nanocomposites simulation stress |
| url | https://www.mdpi.com/2075-4701/10/4/468 |
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