Elastic field prediction for a welding repaired material using a semi-analytical method

Yang, Wenbo; Zhou, Qinghua; Wang, Jiaxu; Khoo, Boo Cheong; Phan‐Thien, N.

doi:10.1016/j.apm.2021.07.007

Cited by 4 publications

(2 citation statements)

References 42 publications

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“…General radiation and convection heat transfer is calculated differently. Near the molten pool area is mainly manifested as heat radiation, while away from the molten pool area is mainly convective heat exchange with the surrounding environment, in order to calculate the convenience of taking into account the combined effect of heat radiation and surface convective heat exchange, using a composite heat dissipation coefficient, the specific calculation formula is shown below [13].…”

Section: Numerical Simulation Of Train Hook Crack Repairmentioning

confidence: 99%

A multi-modal information fusion-based method for repairing cracks in train hooks

Yan

Deng

Lin

et al. 2023

Third International Conference on Image Processing and Intelligent Control (IPIC 2023)

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The current conventional train hook crack repair technology is mainly used to remanufacture and repair worn hooks by laser cladding repair technology, which leads to poor crack identification due to the lack of simulation and analysis of crack data. In this regard, a multimodal information fusion-based crack repair method for train hooks is proposed. The attention mechanism based on the attributes of multimodal information fusion is used to fuse the multi-scale image alignment method and calculate the crack image region features to realize the recognition of hook cracks. Based on this, numerical simulations of train hook crack repair are performed, and the repair process is optimized. In the experiments, the proposed method is verified for the crack recognition effect. The experimental results show that the proposed method has a high recognition accuracy and ideal crack recognition effect when the proposed method is used to recognize train hook images.

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Section: Numerical Simulation Of Train Hook Crack Repairmentioning

confidence: 99%

A multi-modal information fusion-based method for repairing cracks in train hooks

Yan

Deng

Lin

et al. 2023

Third International Conference on Image Processing and Intelligent Control (IPIC 2023)

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“…The comparison between the experimental and numerical results by using same boundary conditions leads to totally correspond of the solutions, which enable to analyze and to evaluate the behavior of defects especially the semi-elliptical cracks along of internal and external sides of piping systems, J. Lukács et al [67], where some projects were studied to enhance mechanical properties of the network systems [68][69][70]. To keep the safety of piping systems from many dangerous phenomena represented by defects such as cracks welded zones [71,72] and stress corrosion cracking which lead to explosion [73], where the solutions are became as challenges faced on hydrocarbons industries.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of the effects of semi-elliptical defects on the API X52 pipeline and its reparation by welding

MESSAOUDI

MERIEM-BENZIANE

2022

JMES

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The aim of the project is to study experimentally the influence of the semi-elliptical defect on the steel of grade API 5L X52 pipeline and its reparation by welding operation to keep the safety of hydrocarbons transport network. The tests have been performed on the specimens with/without semi-elliptical defects by using two ratios a/c and a/t, where the defects issue on the piping systems wall is treated by using the welding operation, which focuses on the filling the defected surface as same thickness of the base wall of the pipeline after removing the defects. The decrease of ultimate stress is mainly evident depending on the size of crack, where they compared to the base metal results. The experimental results showed that the reliability of the welding operation is proved especially in the ratio a/c =1, which is similar to that found in automatically welded. It is proved that the ratio a/t = 0.2 curve exhibits similarity to the base metal curve and their elongation conforms to API standard of steel X52 grade. Clearly, corrosion defects cause degradation of mechanical property in the order of 44% to 50% depending on the ratio of 0 < a/c ≤1 and from 20% to 80% according to the second ration of 0 < a/t ≤0.8. The obtained results proved that the enhanced of mechanical properties by welding reaches to ultimate stress is 559 MPa for the ratio a/t = 0.2 and 531 MPa for the ratio a/t = 0.5. Finally, the experimental results provided that the impact of semi-elliptical defect has effects on the safety of piping systems where welding became as one of among solutions to repair the piping systems.

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Modeling layered composite rock with excavated tunnels subjected to ground loads

Yang,

Zhou,

Shi

et al. 2024

Applied Mathematical Modelling

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Elastic field prediction for a welding repaired material using a semi-analytical method

Cited by 4 publications

References 42 publications

A multi-modal information fusion-based method for repairing cracks in train hooks

A multi-modal information fusion-based method for repairing cracks in train hooks

Experimental study of the effects of semi-elliptical defects on the API X52 pipeline and its reparation by welding

Modeling layered composite rock with excavated tunnels subjected to ground loads

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