Article
Engineering, Civil
Fei Yang, Yuqing Liu, Haohui Xin, Milan Veljkovic
Summary: This paper presents a series of simulations on a demountable steel-concrete bolted connector in push-out tests, incorporating damage models of bolt and concrete materials to better understand the behavior of the connector. Results indicate that friction force at the steel-concrete interface contributes to the shear resistance of the connector, with load-slip curves and bolt fractures being approximately predicted by considering damage models and friction coefficient. Experiments on concrete damage model, bolt hole clearance, and pretension of short bolt are also discussed regarding shear performance.
ENGINEERING STRUCTURES
(2021)
Article
Construction & Building Technology
Chae-Rim Im, Sanghee Kim, Ju-Hyun Mun, Keun-Hyeok Yang, Jae-il Sim
Summary: In this experimental study, push-out tests were conducted to evaluate the shear strength of louver steel plates with different types of shear connectors. It was found that the use of louver steel plates increased the shear strength of the specimens compared to plain steel plates, and the increased strength was approximately 88% of the theoretical bearing strength of the louvers. The slip capacity of the headed studs satisfied the specified criteria, while the lattice shear connectors did not due to insufficient welding length.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Construction & Building Technology
Hailin Yang, Yan Zheng, Shixu Mo, Penghui Lin
Summary: To overcome the high cost of ultra-high-performance concrete (UHPC) and improve the performance of studs in steel-concrete composite bridges, a new bridge slab system has been developed. Experimental results show that the mechanical behavior of studs in this composite slab system has been successfully improved and the current design codes underestimate the shear strength of studs with UHPC cover.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Engineering, Civil
Yang Zou, Hongbo Peng, Zhongya Zhang, Jinlong Jiang, Jincen Guo
Summary: Perfobond shear connector is widely used in steel-concrete composite structures due to its high ultimate shear capacity, large shear stiffness, and excellent fatigue resistance. This study investigates the mechanical properties of perfobond connectors considering the confinement effect caused by restrained rebar and contact friction. The results show that the shear capacity, shear stiffness, and ductility of the connectors can be significantly improved by the presence of restrained rebar and contact friction. A simplified mechanical model and an empirical formula are proposed to accurately predict the shear capacity of perfobond connectors.
Article
Multidisciplinary Sciences
Mohammad Mehdi Ahmadi, Seyed Rasoul Mirghaderi, Nasrin Bakhshayesh Eghbali
Summary: The effective transfer of shear forces and limiting slippage to achieve appropriate composite behavior is crucial in steel-concrete joints. Rigid shear connectors are recommended due to their high strength, stiffness, and small dimensions in the joint area of composite structures. Experimental and finite element modeling studies demonstrate that rigid shear connectors can transfer high levels of forces with minimal slippage and without resistance-decline in a confined condition.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Article
Construction & Building Technology
Senthilkumar Rajendran, Jayabalan Perumalsamy, Divya Mohanraj
Summary: This study assessed the performance of shear connectors for cold-formed elements, including single-channel, double channel, and self-tapping screw connectors. The results showed that double channel connectors had higher initial stiffness and ductility, while self-tapping screws had a higher strength to weight ratio but lower ductility.
STEEL AND COMPOSITE STRUCTURES
(2022)
Article
Engineering, Civil
Feng Zhang, Lei Gao, Jinyi Liu
Summary: This study investigated the stiffness and failure mode of angle steel shear connectors through push-out tests and proposed a strength model for concrete wedge failure. The results showed that the spacing of the angle steel connectors affected the failure mode, and the predicted results using a piecewise function matched well with the experimental results.
IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF CIVIL ENGINEERING
(2022)
Article
Construction & Building Technology
Wei Wang, Xie-Dong Zhang, Jun Chen, Xi-Long Zhou, Bai Zhang
Summary: This study investigated the repetitive performance of an advanced bolted shear connection used in steel-concrete composite beams. Various parameters were considered, including bolt diameter, bolt load, loading path, and loading program. The failure mode, load-slip response, shear bearing resistance, initial slip load, shear stiffness, peak slip, and ductility were evaluated. It was found that bolt shear capacity and load-slip response were similar under repetitive loading as compared to monotonous loading. Additionally, it was observed that peak slip increased with the increase in bolt diameter under repetitive loading. Design recommendations based on existing formulae were also proposed.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Engineering, Civil
Jiepeng Liu, Jincheng Xie, Gang Xiong, Xuanding Wang, Yunhe Zou, Rui Shu, Frank Chen
Summary: Full-scale push-out tests were conducted to study the shear behavior of HSBCs in prefabricated steel-concrete composite bridge beams. The tests considered key parameters including steel block height, longitudinal connector spacing, presence of oblique rebars in the precast slab, and grouting material. The results showed that HSBCs have large shear stiffness, high shear capacity (approximate to 1500kN), and sufficient deformability. The height and spacing of HSBCs were identified as the two principal parameters affecting shear capacity and failure mode.
ENGINEERING STRUCTURES
(2023)
Article
Construction & Building Technology
Gabor Nemeth, Bence Jager, Balazs Kovesdi, Nauzika Kovacs
Summary: The application of steel trapezoidal corrugated web in steel-concrete composite girders has been widespread, but there are not many experimental studies on the behavior of the embedded trapezoidal web and its involvement in shear connection resistance. This study analyzed 43 embedded specimens through large-scale tests and evaluated the static performance of the shear connectors.
ADVANCES IN STRUCTURAL ENGINEERING
(2022)
Article
Construction & Building Technology
Zhaozhuo Gan, Yongliang Sun, Xiaofeng Sun, Lina Zhou, Minjuan He
Summary: This study investigated the push-out performance of inclined self-tapping screw shear connectors in nail-laminated timber-concrete composites. The experimental results showed that self-tapping screws with an 11 mm diameter and 260 mm penetration length had a shear capacity of 32.5 kN and a slip modulus of 6.92 kN/mm. The main failure modes observed were concrete cracking, screw two-hinge yielding, and localized nail-laminated timber embedment failure.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Energy & Fuels
Wei Wang, Xie-dong Zhang, Fa-xing Ding, Xi-long Zhou
Summary: This paper investigates the performance of high-strength bolted shear connectors (HSBSCs) under inverse push-off loading using a three-dimensional finite element model (FEM). The accuracy and reliability of the proposed FEM were validated against push-off test results, and design recommendations for estimating the shear load and load-bearing resistance of HSBSCs were proposed based on extensive parametric analyses.
Article
Engineering, Civil
Cong Li, Baochun Chen, Wenxu Hu, Khaled Sennah
Summary: This paper investigates the shear behavior of a composite slab made of steel and Ultra-high Performance Concrete (UHPC) connected by different connector types. The study explores the influences of parameters such as connector type, bonding area, number of headed studs, and loading mode on the shear resistance of the hybrid connector. The results provide insights into the shear transfer mechanism, composite effect, and shear resistance of the stud and epoxy resin adhesive for the hybrid connector.
Article
Engineering, Civil
Weichen Xue, Dawei Yan, Shiqian Zhang
Summary: GFRP bolts are a promising shear connector in FRP-concrete hybrid beams due to their flexible arrangement and ease of installation. The push-out tests revealed that GFRP bolt specimens exhibited different failure modes compared to stainless-steel bolts, with typical P-S curves showing a non-linear response. The layout of bolts had a negligible effect on the shear capacity if certain criteria for longitudinal row spacing and horizontal spacing were met.
ENGINEERING STRUCTURES
(2023)
Article
Construction & Building Technology
Elif Appavuravther, Bram Vandoren, Jose Henriques
Summary: This paper investigates the mechanical behavior of the perforated shear connectors in timber-concrete composite beams through experimental tests. The results show that the perfobond connections in TCC beams demonstrate promising strength and stiffness, but have limited ultimate slip. However, the high stiffness and load capacity of this connection indicate a significant potential for its implementation in TCC.
JOURNAL OF BUILDING ENGINEERING
(2022)
Article
Computer Science, Interdisciplinary Applications
Mahdi Shariati, Mohammad Saeed Mafipour, Behzad Ghahremani, Fazel Azarhomayun, Masoud Ahmadi, Nguyen Thoi Trung, Ali Shariati
Summary: The study introduces a novel hybrid ELM-GWO model to predict the compressive strength of concrete with partial replacements for cement. The results demonstrate that combining the ELM model with GWO can efficiently improve performance, leading to superior performance indices compared to other models.
ENGINEERING WITH COMPUTERS
(2022)
Article
Construction & Building Technology
Mahdi Shariati, Ali Shariati, Nguyen Thoi Trung, Parham Shoaei, Farshad Ameri, Nasrollah Bahrami, Saeid Narimani Zamanabadi
Summary: This study evaluated the effects of alkali activator solution and utilization of silica fume on durability and microstructural characteristics of alkali-activated GGBFS pastes. The optimal paste with 12 M NaOH solution and SS:SH ratio of 2.5 exhibited the best performance. The inclusion of SF reduced water absorption and increased electrical resistivity, and the SS:SH ratio was found to have a higher contribution to acid attack resistance of AAS pastes.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Computer Science, Interdisciplinary Applications
Yu Bai, Meldi Suhatril, Yan Cao, Ali Forooghi, Hamid Assilzadeh
Summary: This paper models the coupled vibrations of nanobeams with axial and spinning motions under complex environmental changes based on the nonlocal strain gradient theory. A detailed parametric investigation is conducted to determine the effects of various parameters on the system's dynamical behavior and stability. The study shows that considering nonlocal and hygro-thermal effects has destabilizing impacts on the system's dynamic response.
ENGINEERING WITH COMPUTERS
(2022)
Article
Computer Science, Interdisciplinary Applications
Jiang Du, S. H. Mirtalebi, M. T. Ahmadian, Yan Cao, Meldi Suhatril, Hamid Assilzadeh
Summary: This study focuses on the dynamic modeling and parametric optimization for vibration suppression in elbow tubes carrying magnetic flow with different cross-sections. The research investigates the effects of AFG materials, magnetic properties of the fluid, and system geometry on stability, showing that circular cross-sections and increased inclined angles enhance system stability. AFG materials are found to significantly improve system frequency and stability threshold compared to uniform materials, facilitating the design of fluid-transporting macro/microstructures.
INTERNATIONAL JOURNAL OF COMPUTER INTEGRATED MANUFACTURING
(2022)
Article
Construction & Building Technology
Soheil Jahandari, Zhong Tao, Mohammad Saberian, Mahdi Shariati, Jie Li, Masoumeh Abolhasani, Mostafa Kazemi, Aida Rahmani, Maria Rashidi
Summary: The research found that the combined application of lime and geogrid to clayey subgrade significantly enhanced its ductility and geotechnical characteristics, but excessive water pressure caused separation between geogrid layers and subgrade, leading to reduced uniformity and consistency. Moreover, controlling moisture to optimal levels can maximize the performance of subgrade, while excess moisture beyond optimal levels resulted in more voids, decreasing geotechnical properties.
ROAD MATERIALS AND PAVEMENT DESIGN
(2022)
Article
Engineering, Civil
Haider Hamad Ghayeb, N. H. Ramli Sulong, Hashim Abdul Razak, Kim Hung Mo
Summary: This study investigates the performance behavior of novel precast beam-to-column joints using engineered cementitious composite (ECC) with different types of fibers under cyclic loading. The results show that the precast joints exhibit better seismic performance compared to the conventional monolithic joint. This is attributed to the higher tensile and flexural strengths of the ECC fibers, better mechanical bridging and bonding, increased resistance to slippage for reinforcing bars, and avoidance of spalling concrete in the joint area. The novel precast joints can potentially withstand high earthquake activities due to their superior seismic performance.
ENGINEERING STRUCTURES
(2022)
Article
Engineering, Civil
T. Tafsirojjaman, David P. Thambiratnam, N. H. Ramli Sulong, Sabrina Fawzia
Summary: This study aims to develop a finite element (FE) modelling numerical approach to simulate the cyclic response of CFRP strengthened SHS beam-column connections. The research findings show that CFRP strengthened connections have improved structural performance and less tendency for buckling.
THIN-WALLED STRUCTURES
(2022)
Article
Construction & Building Technology
Mahdi Zeinizadeh Jeddi, N. H. Ramli Sulong, Tohid Ghanbari-Ghazijahani
Summary: This research proposes a new blind bolt called TubeBolt for connecting I-beams to concrete-filled tubular columns. The study aims to solve common problems in bolted connections in CFT columns. Tests were conducted to examine the performance of TubeBolt connections compared to EHB bolts. The results showed that TubeBolt connections reduce common problems, provide higher energy dissipation and ductility, and have a larger hysteretic loop area. TubeBolt connections also have higher capacity and stiffness, avoiding severe column face deformations. The study concluded that TubeBolt connections meet ductility and seismic design requirements for moment-resisting frames.
JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
(2022)
Article
Engineering, Geological
Yan Li, Jie Zeng, Meldi Suhatril, Riadh Marzouki, Nebojsa Denic, Sultan Almuaythir, Mohamed M. A. Hussein, Emad Toghroli
Summary: This study examines the shear strength characteristics of rocks and predicts them using regression analysis and rock mass categorization techniques. The hybrid ELM-SVM model is applied to evaluate the shear strength of jointed rock masses. The findings can be used to predict the shear strength values of frequently fractured rocks and establish meaningful relationships between geotechnical units.
Article
Energy & Fuels
Yang Sui, Arwa Abdulkreem AL-Huqail, Meldi Suhatril, Azher M. Abed, Yinghao Zhao, Hamid Assilzadeh, Mohamed Amine Khadimallah, H. Elhosiny Ali
Summary: Billions of liters of wastewater generated daily can be considered as a rich source of energy and materials. Using a solar system for electrolysis, hydrogen gas can be produced from wastewater. The study found that wastewater has the potential to generate high-purity anaerobic hydrogen, and the addition of sewage sludge or effluent can enhance the purity of hydrogen. These findings can be used to develop household energy and wastewater recovery systems.
Article
Green & Sustainable Science & Technology
Karim Nouri, Nor Hafizah Ramli Sulong, Zainah Ibrahim, Mohammad Bazzaz, H. Elhosiny Ali
Summary: This numerical study examines the behavior of novel stiffened angle shear connectors in solid concrete slabs at different temperatures. A nonlinear finite element model is developed and validated with experimental data. The results show a significant decrease in the ultimate strength of the connectors at high temperatures, but they perform similarly to ordinary C-shaped connectors at temperatures between 700-850 degrees C. The stiffened connectors exhibit greater ductility at elevated temperatures and increasing their height and width enhances their shear strength significantly. The findings demonstrate the importance of the connector's height in improving shear strength capacity compared to ordinary C-shaped connectors.
Article
Engineering, Civil
Pouria Ayough, Zainah Ibrahim, N. H. Ramli Sulong, Reventheran Ganasan, Haider Hamad Ghayeb, Mohamed Elchalakani
Summary: This study evaluated the influence of bolted shear studs on the axial performance of circular concrete-filled double-skin steel tubular (CFDST) columns. Through experimental and finite element analysis, it was found that bolted shear studs can prevent shear failure, significantly increase ductility, and improve confinement effect. The local buckling strength of the outer tube decreases when the spacing of the bolted shear studs is reduced.
Article
Engineering, Civil
Tohid Ghanbari-Ghazijahani, Mojtaba Gorji Azandariani, Vanissorn Vimonsatit, N. H. Ramli Sulong
Summary: This study investigates the structural response of concrete-filled steel tubes (CFST) through experimental and analytical sections. The authors perform experiments on CFST columns with different proportions of recycled redwood timber chips embedded in the concrete. An analytical investigation is also conducted using equations from four design codes to predict the axial capacity. The results show that embedding waste timber in concrete has the potential to upcycle wood residue into a commercially viable product.
THIN-WALLED STRUCTURES
(2023)
Article
Engineering, Civil
T. Tafsirojjaman, Nicholas Wirth, David P. Thambiratnam, N. H. Ramli Sulong, Allan Manalo, Sabrina Fawzia
Summary: This study conducted detailed experiments to investigate the use of carbon fibre reinforced polymer (CFRP) and glass fibre reinforced polymer (GFRP) as strengthening measures for square hollow sections (SHS). The results showed that the strengthened members exhibited improved performance, including lower moment degradation, higher load-carrying capacity, and greater stiffness and ductility. Additionally, GFRP strengthening was found to be more effective for cyclically loaded steel SHS. The developed theoretical model accurately predicted the ultimate moment capacities of the strengthened SHS members.
STRUCTURE AND INFRASTRUCTURE ENGINEERING
(2023)
Article
Engineering, Civil
Mumtahina Akter, N. H. Ramli Sulong, Pouria Ayough, T. Tafsirojjaman, Sabrina Fawzia
Summary: This paper presents a nonlinear finite element analysis of circular concrete-filled steel tubes with rubberized infill concrete under flexure. The FE models were validated against experimental test results and used to investigate the effect of various parameters on the beams. The study found that steel tube properties, loading distance, and span length had different impacts on the beams' ultimate capacity and ductility.
Article
Engineering, Mechanical
Willy Ank de Morais, Railson Bolsoni Falcao, Mario Boccalini Jr, Fernando Jose Gomes Landgraf
Summary: This study compares the fatigue behavior of bcc Nb-48 wt%Ti (Ti-36at%Nb) alloy parts processed by Laser Powder Bed Fusion (L-PBF) using two different types of powders (spherical powder produced by Plasma Atomization and irregularly shaped powder produced by Hydride-Dehydride). The results show that the fatigue behavior is similar for both powders, but the specimens produced from the Hydride-Dehydride powder have higher dispersed results. Fracture primarily occurs in the porosities near the machined sample surface, and the fatigue cracks propagate in a zigzag mode parallel to the L-PBF building direction.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Guoxi Jing, Shuai Sun, Teng Ma, Shubo Li, Tian Ma, Junchao Wei, Jianchao Pang
Summary: This study proposes a parameter identification method for predicting the TMF life of CGI materials used in cylinder heads. The study evaluates the TMF behavior of RuT450 material and successfully predicts its TMF life using multi-objective optimization. The results highlight the influence of plastic strain amplitude, temperature, and strain rate on the damage mechanism and life prediction.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Xin Zhang, Xu Li, Weipeng Xu, Kuidong Gao, Kao Jiang, Xinyu Wang, Hongxin Wei
Summary: Conical picks are commonly used in tunnel excavation and often experience high temperatures during the cutting process. This study investigated the influence of temperature on the wear of conical picks and proposed a method for measuring rock abrasiveness that takes into account the thermal effect. The experimental results showed that cooling liquid reduced the maximum temperature and the mean mass loss of the conical pick. Additionally, the study examined the characteristics of oxygen and found evidence of peeling, cracking, and oxidation on the grinding rod used for rock abrasiveness measurement.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Vivek Srivastava, Deependra Singh, A. G. Rao, V. P. Deshmukh
Summary: Engine gear failures are a significant concern in various industries. Investigating each gear failure and determining the root cause is important for preventing future failures. This study used experimental and numerical analysis techniques to investigate the premature failure of a flywheel gear in a marine diesel engine. The findings revealed that the gear failed due to overload stresses caused by overload torque generated from sudden inertial thrust in the internal combustionengine.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Jun Zhang, Weidong Liu, Feilong Liu, Zhiqiang Yang, Jinfang Peng, Minhao Zhu
Summary: During a major overhaul of an aeroengine, a cracked stator vane of the low-pressure compressor was discovered, with the crack originating from a corrosion pit located on the arc transition between the leading edge and the upper edge plate. The fracture surface exhibited signs of fatigue cracks, indicating a pit-related fatigue crack. Metallographic examination revealed that most corrosion pits were distributed beneath the bulging or peeling paint layer on the leading edge and the concave side. Identification of the corrosion products showed the presence of sulfate and alumina, suggesting atmospheric corrosion as a likely cause for the cracked stator vane.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Juan Jose Jimenez de Cisneros Fonfria, Ester Olmeda, Susana Sanz, Maria Garrosa, Vicente Diaz
Summary: Energy absorbing devices in vehicles can partially transform impact energy and protect passengers. In this paper, the failure analysis of the underframe crumple zone in a train car was conducted through finite element simulations, showing that the component acted properly after the impact.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Fengqi Zhang, Gang Luo, Haiyang Zhang, Peihong Cong, Lulu Liu, Wei Chen
Summary: In this study, a predictive model for bird strike trajectory was developed based on the quasi-linear viscoelastic model. By combining simulation analysis under multiple conditions, the model reproduced the trajectory change law in low and medium speed bird impact experiments.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
S. M. de Gouveia, L. de Abreu Correa, D. B. Teles, M. Oliveira, T. G. R. Clarke
Summary: Emergency Shutdown Valves (EDSVs) are used in industrial applications to interrupt fluid flow during hazardous events. The damage to the valve seats can be detected by analyzing the pressure and torque data. This study compared three processing options and found that evaluating the complete signature with a Gradient Boosting Classifier algorithm is the most effective strategy.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Xinyan Jin, Kai Wang, Hongwei Qian
Summary: This study investigated the root cause of an abnormal premature groove-clogging failure on a sink roll in a hot-dip galvanizing line. It was found that the failure was caused by the buildup of a large amount of Fe2Al5Znx dross in the grooves, and the key factor was the control of Tstrip.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Zhiqiang Li, Jie Li, Cen Li, Xiaodong Xie, Zhiyong Yang
Summary: In this study, the microstructure evolution of the material in the hot spot area of the high-speed train brake disc was observed and the mechanism of mechanical property degradation was obtained through tensile tests. The research results provide guidance for crack damage identification of the brake disc and condition-based maintenance.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Lijia Luo, Yincheng Wang, Wei Chen, Zuming Zhao, Wenfei Chen, Shiyi Bao
Summary: Tube-to-tube impact wear is a significant factor in the failure of alloy 690 tubes in nuclear steam generators. This paper investigates the wear damage mechanism and detection method of alloy 690 tubes under tube-to-tube impact loads. The results reveal the wear damage mechanism through analysis of macro and micro morphologies as well as metallographic structures. A nonlinear ultrasonic wave mixing method is proposed for damage detection and a detection device is developed to implement this method. Experimental results indicate that the damage mode of tube-to-tube impact wear varies with impact load and cycle number, and the nonlinear modulation index is effective in assessing the damage degree of alloy 690 tubes.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Xing-Ju Yang, Feng Lin, Xu Du, Lu Qiu
Summary: This paper proposes a novel method of improving the progressive collapse resistance of RC frame structures by adding locally debonded kinked steel plates (KPs). Experimental tests and finite element analysis reveal that the addition of KPs significantly enhances the ultimate resistance and deformability of the beam-slab substructures. The mechanism of resistance improvement is explained, and an analytical model is developed for predicting the ultimate resistance of the structures.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Xiaohe Wang, Zengqiang Cao
Summary: This paper presents a dynamic installation (DI) method based on electromagnetic force to reduce damage to composite laminates and improve joint performance. The study shows that DI can effectively decrease installation resistance, reduce severe damage to laminates, and improve stress distribution in the joint.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Jitong Cui, Yingying Kong, Cuiwei Liu, Baoping Cai, Faisal Khan, Yuxing Li
Summary: This paper presents a method for quantifying the failure probability of hydrogen doped pipelines and utilizes Bayesian network for quantitative calculation. The results show that this method can more accurately assess the failure probability of hydrogen doped pipelines and provide a decision basis for preventing failure accidents.
ENGINEERING FAILURE ANALYSIS
(2024)
Article
Engineering, Mechanical
Yiping Jiang, Maoru Chi, Jungang Yang, Liangcheng Dai, Yuchen Xie, Zhaotuan Guo
Summary: This article investigates and simulates the derailment of empty freight trains at the switch section of a turnout in the diverging route, and proposes preventive measures. The results show that the derailment is caused by the combined effect of various factors, and reducing the longitudinal coupler force and the wheel rail friction coefficient can decrease the possibility of derailment. Additionally, installing a guard rail in front of the turnout can effectively prevent derailment.
ENGINEERING FAILURE ANALYSIS
(2024)
