Failure prevention in steel structure with interacting cracks
In the railway industry, most of the train derailment accidents were due to rolling contact fatigue failure. Thus, ifadvance and detailed studies aredone onto railway fatigue life prediction, although fatigue crack growth is inevitable, however through understanding the crack propagation behaviors,...
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| Materialtyp: | Final Year Project (FYP) |
| Språk: | English |
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Nanyang Technological University
2020
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| Länkar: | https://hdl.handle.net/10356/136733 |
| _version_ | 1826114482640781312 |
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| author | Choong, Wei Sing |
| author2 | Xiao Zhongmin |
| author_facet | Xiao Zhongmin Choong, Wei Sing |
| author_sort | Choong, Wei Sing |
| collection | NTU |
| description | In the railway industry, most of the train derailment accidents were due to rolling contact fatigue failure. Thus, ifadvance and detailed studies aredone onto railway fatigue life prediction, although fatigue crack growth is inevitable, however through understanding the crack propagation behaviors, a lot of accidents might be preventable. Previously, there were many studies had been done pertainingtofatigue crack growth to investigate stress intensity in rail,but lack of fatigue study on simultaneous cracks subjected to cyclic loading.Asa complete full-scale fatigue experiment is time-consuming and costly, the author utilizes thesimulation software Abaqus 6.19, through its extended finite element method (XFEM) to do numerical simulation. By investigatingthe crack growth behaviors from the results obtained, to find out the correlations between the crack propagation with various simultaneous cracks configurations and loading parameters. The outcome can be used for fatigue failure assessment and future rail design. |
| first_indexed | 2024-10-01T03:40:14Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/136733 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:40:14Z |
| publishDate | 2020 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1367332023-03-04T18:24:19Z Failure prevention in steel structure with interacting cracks Choong, Wei Sing Xiao Zhongmin School of Mechanical and Aerospace Engineering mzxiao@ntu.edu.sg Engineering::Mechanical engineering In the railway industry, most of the train derailment accidents were due to rolling contact fatigue failure. Thus, ifadvance and detailed studies aredone onto railway fatigue life prediction, although fatigue crack growth is inevitable, however through understanding the crack propagation behaviors, a lot of accidents might be preventable. Previously, there were many studies had been done pertainingtofatigue crack growth to investigate stress intensity in rail,but lack of fatigue study on simultaneous cracks subjected to cyclic loading.Asa complete full-scale fatigue experiment is time-consuming and costly, the author utilizes thesimulation software Abaqus 6.19, through its extended finite element method (XFEM) to do numerical simulation. By investigatingthe crack growth behaviors from the results obtained, to find out the correlations between the crack propagation with various simultaneous cracks configurations and loading parameters. The outcome can be used for fatigue failure assessment and future rail design. Bachelor of Engineering (Mechanical Engineering) 2020-01-14T06:58:35Z 2020-01-14T06:58:35Z 2018 Final Year Project (FYP) https://hdl.handle.net/10356/136733 en application/pdf Nanyang Technological University |
| spellingShingle | Engineering::Mechanical engineering Choong, Wei Sing Failure prevention in steel structure with interacting cracks |
| title | Failure prevention in steel structure with interacting cracks |
| title_full | Failure prevention in steel structure with interacting cracks |
| title_fullStr | Failure prevention in steel structure with interacting cracks |
| title_full_unstemmed | Failure prevention in steel structure with interacting cracks |
| title_short | Failure prevention in steel structure with interacting cracks |
| title_sort | failure prevention in steel structure with interacting cracks |
| topic | Engineering::Mechanical engineering |
| url | https://hdl.handle.net/10356/136733 |
| work_keys_str_mv | AT choongweising failurepreventioninsteelstructurewithinteractingcracks |