A wedge disclination in a functional gradient material
The classical solutions for disclination in an infinitely long elastic solid have been solved by the integration of disclination densities by deWit. In this paper, a wedge disclination in an elastic functional cylinder with a core is investigated, focusing on the stress field. The approach is to sol...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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Nanyang Technological University
2021
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| Online Access: | https://hdl.handle.net/10356/150622 |
| _version_ | 1811677746252742656 |
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| author | Muhammad Nabil Abdul Aziz |
| author2 | Wu Mao See |
| author_facet | Wu Mao See Muhammad Nabil Abdul Aziz |
| author_sort | Muhammad Nabil Abdul Aziz |
| collection | NTU |
| description | The classical solutions for disclination in an infinitely long elastic solid have been solved by the integration of disclination densities by deWit. In this paper, a wedge disclination in an elastic functional cylinder with a core is investigated, focusing on the stress field. The approach is to solve the equilibrium equations directly and expressed in terms of radial displacement. The material gradient of the cylinder is presumed to follow a power law that is characterized by a gradient index. The results show that: (1) the gradient index of the material has an influence over the elastic parameters which results in variations in the stress field, the radial and transverse stresses and displacement changes with radial coordinate, transverse stress is at minimum at the disclination core. These results can help to better control several relaxation phenomena such as crack nucleation and disclination splitting. |
| first_indexed | 2024-10-01T02:42:16Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/150622 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:42:16Z |
| publishDate | 2021 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1506222021-06-09T03:32:52Z A wedge disclination in a functional gradient material Muhammad Nabil Abdul Aziz Wu Mao See School of Mechanical and Aerospace Engineering MMSWu@ntu.edu.sg Engineering::Mechanical engineering The classical solutions for disclination in an infinitely long elastic solid have been solved by the integration of disclination densities by deWit. In this paper, a wedge disclination in an elastic functional cylinder with a core is investigated, focusing on the stress field. The approach is to solve the equilibrium equations directly and expressed in terms of radial displacement. The material gradient of the cylinder is presumed to follow a power law that is characterized by a gradient index. The results show that: (1) the gradient index of the material has an influence over the elastic parameters which results in variations in the stress field, the radial and transverse stresses and displacement changes with radial coordinate, transverse stress is at minimum at the disclination core. These results can help to better control several relaxation phenomena such as crack nucleation and disclination splitting. Bachelor of Engineering (Mechanical Engineering) 2021-06-09T03:32:52Z 2021-06-09T03:32:52Z 2021 Final Year Project (FYP) Muhammad Nabil Abdul Aziz (2021). A wedge disclination in a functional gradient material. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/150622 https://hdl.handle.net/10356/150622 en application/pdf Nanyang Technological University |
| spellingShingle | Engineering::Mechanical engineering Muhammad Nabil Abdul Aziz A wedge disclination in a functional gradient material |
| title | A wedge disclination in a functional gradient material |
| title_full | A wedge disclination in a functional gradient material |
| title_fullStr | A wedge disclination in a functional gradient material |
| title_full_unstemmed | A wedge disclination in a functional gradient material |
| title_short | A wedge disclination in a functional gradient material |
| title_sort | wedge disclination in a functional gradient material |
| topic | Engineering::Mechanical engineering |
| url | https://hdl.handle.net/10356/150622 |
| work_keys_str_mv | AT muhammadnabilabdulaziz awedgedisclinationinafunctionalgradientmaterial AT muhammadnabilabdulaziz wedgedisclinationinafunctionalgradientmaterial |