Fatigue failure investigation in steel structures with an internal crack
One of the most efficient ways of travelling in Singapore would be the Mass Rapid Transit (MRT). The MRT is responsible for more than 3 million passenger trips daily. [1] In addition to the heavy load of passengers, the high speed of the MRT and the curvature of the track causes rolling contact fati...
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| Format: | Final Year Project (FYP) |
| Language: | English |
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Nanyang Technological University
2020
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| Online Access: | https://hdl.handle.net/10356/140781 |
| _version_ | 1811693169966841856 |
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| author | Lim, Alfie Chee Chong |
| author2 | Xiao Zhongmin |
| author_facet | Xiao Zhongmin Lim, Alfie Chee Chong |
| author_sort | Lim, Alfie Chee Chong |
| collection | NTU |
| description | One of the most efficient ways of travelling in Singapore would be the Mass Rapid Transit (MRT). The MRT is responsible for more than 3 million passenger trips daily. [1] In addition to the heavy load of passengers, the high speed of the MRT and the curvature of the track causes rolling contact fatigue (RCF) between the surfaces of the wheel and the surfaces of the rail that are in contact. This paper aims to investigate the crack growth in the White Etching Layer (WEL) through cyclic rolling contact. The study will be done by utilising ANSYS Workbench simulation software. To achieve the aim of the study, a model based on the specifications of the SMRT rail tracks will be constructed. Furthermore, different crack configurations will be used to further understand how the position, length and orientation of cracks will affect the rail. The simulations were run under the same constraints of continuous or dynamic and instantaneous or static compressive loading and traction force, the results gathered will then be used to investigate the crack behaviour in the rail. |
| first_indexed | 2024-10-01T06:47:25Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/140781 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:47:25Z |
| publishDate | 2020 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1407812023-03-04T20:02:10Z Fatigue failure investigation in steel structures with an internal crack Lim, Alfie Chee Chong Xiao Zhongmin School of Mechanical and Aerospace Engineering mzxiao@ntu.edu.sg Engineering::Mechanical engineering One of the most efficient ways of travelling in Singapore would be the Mass Rapid Transit (MRT). The MRT is responsible for more than 3 million passenger trips daily. [1] In addition to the heavy load of passengers, the high speed of the MRT and the curvature of the track causes rolling contact fatigue (RCF) between the surfaces of the wheel and the surfaces of the rail that are in contact. This paper aims to investigate the crack growth in the White Etching Layer (WEL) through cyclic rolling contact. The study will be done by utilising ANSYS Workbench simulation software. To achieve the aim of the study, a model based on the specifications of the SMRT rail tracks will be constructed. Furthermore, different crack configurations will be used to further understand how the position, length and orientation of cracks will affect the rail. The simulations were run under the same constraints of continuous or dynamic and instantaneous or static compressive loading and traction force, the results gathered will then be used to investigate the crack behaviour in the rail. Bachelor of Engineering (Mechanical Engineering) 2020-06-02T03:13:16Z 2020-06-02T03:13:16Z 2020 Final Year Project (FYP) https://hdl.handle.net/10356/140781 en B120 application/pdf Nanyang Technological University |
| spellingShingle | Engineering::Mechanical engineering Lim, Alfie Chee Chong Fatigue failure investigation in steel structures with an internal crack |
| title | Fatigue failure investigation in steel structures with an internal crack |
| title_full | Fatigue failure investigation in steel structures with an internal crack |
| title_fullStr | Fatigue failure investigation in steel structures with an internal crack |
| title_full_unstemmed | Fatigue failure investigation in steel structures with an internal crack |
| title_short | Fatigue failure investigation in steel structures with an internal crack |
| title_sort | fatigue failure investigation in steel structures with an internal crack |
| topic | Engineering::Mechanical engineering |
| url | https://hdl.handle.net/10356/140781 |
| work_keys_str_mv | AT limalfiecheechong fatiguefailureinvestigationinsteelstructureswithaninternalcrack |