Railway infrastructure fatigue damage prediction using a multiaxial fatique criterion
The research on fatigue damage mechanism of railway infrastructure metallic components, i.e., rail joint and switch panel, is performed in this work, with the help of three technical methods, multiaxial fatigue theory, explicit finite element model (FEM) and stochastic analysis. With regard to multi...
| Main Authors: | , , |
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| Format: | info:eu-repo/semantics/doctoralThesis |
| Language: | eng |
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Servicio de Publicaciones. Universidad de Navarra
2018
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10171/53659 |
| _version_ | 1793400483962945536 |
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| author | Lu, C.(Chun) Martinez Esnaola, J.M.(José Manuel) Melendez Lagunilla, J.(Juan) |
| author_facet | Lu, C.(Chun) Martinez Esnaola, J.M.(José Manuel) Melendez Lagunilla, J.(Juan) |
| author_sort | Lu, C.(Chun) |
| collection | DSpace |
| description | The research on fatigue damage mechanism of railway infrastructure metallic components, i.e., rail joint and switch panel, is performed in this work, with the help of three technical methods, multiaxial fatigue theory, explicit finite element model (FEM) and stochastic analysis. With regard to multiaxial fatigue theory, a method for predicting fatigue damage direction and a multiaxial fatigue criterion are proposed, the results indicate the proposed methods can provide a more accurate prediction of fatigue damage direction and fatigue life compared with other methods. With regard to explicit FEM, a wheelset passing through railway infrastructure components (a rail joint and a switch panel) are established, research shows that explicit FEM is suitable for studying the damage mechanism on rail joint and switch panel. Finally, a combination of the proposed multiaxial fatigue theory, established explicit FEM and stochastic analysis is carried out to study the damage mechanism of railway infrastructure. This work can provide theoretical foundation for the design and maintenance for railway infrastructure. |
| format | info:eu-repo/semantics/doctoralThesis |
| id | oai:dadun.unav.edu:10171-53659 |
| institution | Universidad de Navarra |
| language | eng |
| publishDate | 2018 |
| publisher | Servicio de Publicaciones. Universidad de Navarra |
| record_format | dspace |
| spelling | oai:dadun.unav.edu:10171-536592020-07-21T01:11:59Z Railway infrastructure fatigue damage prediction using a multiaxial fatique criterion Lu, C.(Chun) Martinez Esnaola, J.M.(José Manuel) Melendez Lagunilla, J.(Juan) Multiaxial fatigue Stochastic fatigue damage Rail joint Switch blade Railway infrastructure The research on fatigue damage mechanism of railway infrastructure metallic components, i.e., rail joint and switch panel, is performed in this work, with the help of three technical methods, multiaxial fatigue theory, explicit finite element model (FEM) and stochastic analysis. With regard to multiaxial fatigue theory, a method for predicting fatigue damage direction and a multiaxial fatigue criterion are proposed, the results indicate the proposed methods can provide a more accurate prediction of fatigue damage direction and fatigue life compared with other methods. With regard to explicit FEM, a wheelset passing through railway infrastructure components (a rail joint and a switch panel) are established, research shows that explicit FEM is suitable for studying the damage mechanism on rail joint and switch panel. Finally, a combination of the proposed multiaxial fatigue theory, established explicit FEM and stochastic analysis is carried out to study the damage mechanism of railway infrastructure. This work can provide theoretical foundation for the design and maintenance for railway infrastructure. 2018-09-12T07:42:53Z 2018-09-12T07:42:53Z 2018 2018-09-13 info:eu-repo/semantics/doctoralThesis https://hdl.handle.net/10171/53659 eng info:eu-repo/semantics/openAccess application/pdf Servicio de Publicaciones. Universidad de Navarra |
| spellingShingle | Multiaxial fatigue Stochastic fatigue damage Rail joint Switch blade Railway infrastructure Lu, C.(Chun) Martinez Esnaola, J.M.(José Manuel) Melendez Lagunilla, J.(Juan) Railway infrastructure fatigue damage prediction using a multiaxial fatique criterion |
| title | Railway infrastructure fatigue damage prediction using a multiaxial fatique criterion |
| title_full | Railway infrastructure fatigue damage prediction using a multiaxial fatique criterion |
| title_fullStr | Railway infrastructure fatigue damage prediction using a multiaxial fatique criterion |
| title_full_unstemmed | Railway infrastructure fatigue damage prediction using a multiaxial fatique criterion |
| title_short | Railway infrastructure fatigue damage prediction using a multiaxial fatique criterion |
| title_sort | railway infrastructure fatigue damage prediction using a multiaxial fatique criterion |
| topic | Multiaxial fatigue Stochastic fatigue damage Rail joint Switch blade Railway infrastructure |
| url | https://hdl.handle.net/10171/53659 |
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