Numerical analysis on the SIF of internal surface cracks in steel pipes reinforced with CRS subjected to bending
| Autor: | Xiaoli Jiang, Zongchen Li, Hans Hopman |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Surface (mathematics)
Materials science composite repair system Mechanical Engineering Numerical analysis Composite number finite element method Ocean Engineering Bending stress intensity factor Aspect ratio (image) Finite element method steel pipes Surface crack growth Composite material Stress intensity factor Parametric statistics |
| Zdroj: | Ships and Offshore Structures, 15 (2020)(10) |
| ISSN: | 1744-5302 |
| Popis: | In this paper, Composite Repair System (CRS) is applied to repair the circumferential internal surface cracked steel pipes subjected to bending. The Stress Intensity Factor (SIF) is quantitatively analysed by means of numerical simulations, and the crack growth rate is predicted by using the Paris’ law. First, the three-dimensional finite element (FE) model is developed, and its reliability of evaluating SIF of internal surface crack in CRS reinforced pipe is validated. Then based on the FE method and combined with Paris’ law, a case study is deployed to predict the internal surface crack growth in steel pipes reinforced with CRS. The results show that CRS have significantly reduced the SIF of the internal surface crack and decrease the crack growth rate, while unchanging the variation trend of the crack aspect ratio. Afterwards, a parametric study is performed in order to guide the optimisation design of CRS reinforcement. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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