Numerical Fatigue Simulation of Access Hole Detail in Orthotropic Steel Bridge Deck
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Bibliographic Details
| Author(s): |
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: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022 | ||||
| Published in: | IABSE Congress Nanjing 2022 | ||||
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| Page(s): | 887-893 | ||||
| Total no. of pages: | 7 | ||||
| DOI: | 10.2749/nanjing.2022.0887 | ||||
| Abstract: |
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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| Keywords: |
fatigue crack numerical simulation Orthotropic steel bridge deck XFEM welding residual stress access hole detail
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| Copyright: | © 2022 International Association for Bridge and Structural Engineering (IABSE) | ||||
| License: | This creative work is copyrighted material and may not be used without explicit approval by the author and/or copyright owner. |
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