Numerical Fatigue Simulation of Access Hole Detail in Orthotropic Steel Bridge Deck
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Bibliografische Angaben
| Autor(en): |
Chunsheng Wang
(Department of bridge Engineering, College of Highways, Chang’an University, Xi’an, CHINA)
Yubo Mao (Department of bridge Engineering, College of Highways, Chang’an University, Xi’an, CHINA) Puyu Li (Department of bridge Engineering, College of Highways, Chang’an University, Xi’an, CHINA) Chenhui Zhu (Department of bridge Engineering, College of Highways, Chang’an University, Xi’an, CHINA) |
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| Medium: | Tagungsbeitrag | ||||
| Sprache(n): | Englisch | ||||
| Tagung: | IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022 | ||||
| Veröffentlicht in: | IABSE Congress Nanjing 2022 | ||||
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| Seite(n): | 887-893 | ||||
| Anzahl der Seiten (im PDF): | 7 | ||||
| DOI: | 10.2749/nanjing.2022.0887 | ||||
| Abstrakt: |
In order to investigate the fatigue crack mechanism of growth and propagation at access hole detail in the orthotropic steel bridge deck, welding numerical model and multi-scale whole bridge numer- ical fatigue model were established. Based on linear elastic fracture mechanics and eXtend finite element model (XFEM), numerical fatigue simulation and mechanism analysis were carried out un- der the multi-filed coupling effect. Welding residual stress analysis results show that the high resid- ual tensile stress exists at welding hole edge, of which the maximum value located at the middle of the edge. The numerical simulation results show that stress intensity factor (SIF) range at access hole detail exceeded the fatigue crack propagation threshold under the multi-filed coupling effect. And fatigue cracks at access hole detail are mode I cracks. |
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| Stichwörter: |
Ermüdungsriß numerische Simulation
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| Copyright: | © 2022 International Association for Bridge and Structural Engineering (IABSE) | ||||
| Lizenz: | Die Urheberrechte (Copyright) für dieses Werk sind rechtlich geschützt. Es darf nicht ohne die Zustimmung des Autors/der Autorin oder Rechteinhabers/-in weiter benutzt werden. |
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