VARIANTS FOR EVALUATING THE RIGIDITY OF FLAT RING FLANGES by RADU I. IATAN, GHEORGHITA TOMESCU, MELANIA CORLECIUC (MITUCA), GEORGETA ROMAN (URSE), NICOLETA SPOREA, IULIANA- MARLENA PRODEA, IOLANDA CONSTANTA PANAIT

“… This paper describes an analytical way of comparative evaluation of the stiffnesses developed in assemblies with flat ring flanges, of optional type, welded to the cylindrical body of a pressure vessel. …”
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FRACTURE ANALYSIS OF MAIN TRANSFORMER EQUIPMENT CLAMP IN NUCLEAR POWER PLANT by ZHANG HongWu, FENG NanNan, LIU Rui, CHEN Yang

“…The main reason for the fracture is that the equipment clamp bears all kinds of stress under the condition of insufficient strength and performance degradation, and finally cracks appear at the weakest part of the weld, forming fracture. In order to avoid the occurrence of similar accidents, it is suggested to strengthen the metal supervision and strictly control the quality of the access equipment.…”
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RESEARCH ON THE CRACKING MECHANISM OF THE MAIN GIRDER OF 350T CASTING CRANE by WANG XiaoXi, LUO HuiXin, DANG Zhang, XU WeiWen, ZHANG QinFen

“…According to the actual observation,the results of the finite element calculation,that the end of the main beam of the lower end of the curved plate,the end of the beam and the main beam end bending plate butt weld in the intersection,the stress concentration of the site,resulting in a crack in the main girder of crane. …”
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Ultrasonic Flaw Detection for Quality Assessment of Explosively Clad Plates by Bogumił Wronka

“…The properties of explosive welded joints and cases of cracks in clad plates are tested. …”
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Real-Time Monitoring and Early Warning Method Utilizing FBG Sensors in the Retrofitting Process of Structures by Shuli Fan, Liang Ren, Hongnan Li, Biao Song

“…Eight FBG sensor clusters consisting of a strain sensor and a temperature sensor were welded on the steel beam surface. Using these FBG sensors, the real-time strains in key positions during the cutting process of steel beam were measured. …”
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APPLICATIONS OF MONTE CARLO SIMULATION TO STRUCTURAL ENGINEERING PROBLEMS by Abdullah Azbah

“…Three design problems are presented which are the design of a pressure vessel, the design of a rectangular welded beam, and the design of a compression spring. …”
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Device and Methods for Measuring of Acoustic Anisotropy and the Residual Stress in the Main Gas Pipelines’ Metal by L. V. Volkova, O. V. Murav’eva, V. V. Murav’ev, I. V. Buldakova

“…As an object of research, we used fragments – the cuttings of gas pipelines with circumferential welds both after fabrication and removed from service with stress corrosion cracking, including ones with corrosion damage and without visible damage.The method of determining the plane stress-strain state of pipeline elements is based on the phenomenon of acoustoelasticity – the dependence of the propagation velocity of ultrasonic waves on mechanical stresses. …”
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Dynamics of a Slab in the Roof of a Buried Structure When the Stiffness of its Supports is Varied by A. V. Alekseytsev

“…The design of supports in the form of crumpled inserts made of electric-welded steel pipe is considered. When building the fibre concrete model, volumetric finite elements were used, coupling with reinforcement was taken into account by using interpolation elements, steel reinforcement was represented as an ideal elastoplastic body. …”
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Micromorphology and damage characterization of vacuum brazed stainless steel joints with laser etched interfaces by Jie Wang, Huixin Chen, Yichuan Wang, Nian Li, Xinlong Wei, Xiang Ling

“…This study investigates the effect of laser etching on vacuum welded joints through organizational observation and shear testing. …”
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REDUCTION DESIGN AND OPTIMIZATION ANALYSIS FOR VEHICLE BODY BASED ON TAILOR ROLLED BLANK TECHNOLOGY by CHENG JiangHong, WANG LiJuan, CHEN ZongYu, XU MingTao, FANG ZheLin

“…The vehicle lightweight was cut down 5. 5kg,the number of automotive parts was reduced 5,while the crash safety was ensured.Accordingly,decreasing weld process,manufacturing procedure,and achieve the dual goals of crashworthiness and reduction.…”
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FATIGU TEST AND PARAMETRIC STUDY OF CRACKED STEEL PLATES REPAIRED BY CFRP by WU XiZhi, CHENG JunSheng, YANG Yu, HUANG Yi

“…At the thin steel plates running a period,cracks may occur at the material or weld,and traditional repair methods aren’t suitable for cracks repair of the thin steel plates.But the method of drilling hole at the crack tip and pasting CFRP on the steel plates is a choice for crack repair.Firstly,through five groups of fatigue test,it analyzed the effect of the crack fatigue life of the hole joint CFRP reinforcement and the other methods.Then,based on the cohesive force theory,it established the finite element model of notch steel plate reinforced with CFRP.With the finite element model,it studied the repair parameters of the stiffness,length and width of CFRP.The results demonstrate that the remaining fatigue life of the hole joint CFRP reinforcement is better than drilling holes or pasting CFRP,and even more than the steel plate with no crack.So it is especially suitable for the thin-wall steel plate with short cracks.…”
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APPLICATION AND RESEARCH OF ACOUSTIC EMISSION TECHNOLOGY IN DYNAMIC MONITORING OF WIND TOWER by ZHANG PengLin, LIU RuiJun, WEI XiaoHong, KONG Peng, DENG HuiQing

“…It is demonstrated that the AE signal decayed obviously at the weld joint compared to parent metal,meanwhile the signal can reached farthest 6 m in wind tower. …”
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Reduction of Maximum and Residual Drifts on Posttensioned Steel Frames with Semirigid Connections by Arturo López-Barraza, Edén Bojórquez, Sonia E. Ruiz, Alfredo Reyes-Salazar

“…It is concluded that the structural response of steel buildings with posttensioned connections subjected to intense earthquake ground motions is reduced compared with the seismic response of traditional buildings with welded connections. Moreover, residual interstory drift demands are considerably reduced for the system with posttensioned connections, which is important to avoid the demolition of the buildings after an earthquake.…”
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Finite Element Analysis of Residual Stress in the Diffusion Zone of Mg/Al Alloys by Yunlong Ding, Dongying Ju

“…Simulations on the annealing of the welded specimens at 200°C, 250°C, and 300°C were conducted. …”
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STUDY ON COMPILING LOAD SPECTRUM OF ACCELERATION LIFE TEST FOR HIGH SPEED PANTOGRAPH FRAME by QIAO Wei, MEI GuiMing, WANG JiangWen, HUANG Zhong, QIU JiangYang

“…The dynamic stress analysis method is used to convert the time-history data of the upper frame load into the stress spectrum of the weld concerned. At the same time, the statistical characteristics of the stress spectrum amplitude method are studied, the results show that the amplitude obeys Weibull distribution, and the eight-order one-dimensional loading spectrum is established by extrapolation of the parameter method. …”
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Fracture-Safe and Fatigue-Reliable Structures by M. N. James

“…Alongside this, however, failures of large, and expensive, welded structures can still occur from such simple causes as inadequate communication, and lack of awareness of the importance of the design of structural details to the overall fatigue life and failure. …”
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Contribution of longitudinal stiffener rigidity and position to bridge girder integrity by Emanuele Maiorana

“…To increase the elastic critical load of a plate, such as I-shaped cross-welded section of bridge girders, slenderness is usually reduced by dividing the web into subpanels, by means of transversal stiffeners and a longitudinal stiffener to increase flexural and torsional stiffness. …”
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Effect of Prior Rolling on Microstructures and Property of Diffusion-Bonded Mg/Al Alloy by Yunlong Ding, Jialian Shi, Dongying Ju

“…Then, rolled magnesium alloy and magnesium alloy without being rolled were, respectively, welded with aluminum alloy 6061 by diffusion bonding method. …”
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Evolution of Longitudinal Resistance Performance of Granular Ballast Track with Durable Dynamic Reciprocated Changes by Jieling Xiao, Hao Liu, Ping Wang, Ganzhong Liu, Jingmang Xu, Rong Chen

“…Moreover, this methodology contributes to forming a foundation for an in-depth understanding of the dynamic service performance of ballast CWR tracks and of the stress deformation mechanism of continuously welded rail tracks.…”
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STUDY ON SAFETY OF T PLATE CONTAINING CRACK BASED ON BS7910 by YANG ShaoKun, WANG Xin, JIA XingJun, GAO ShunDe, CAI FuHai

“…Failure assessment diagram（ FAD） is usually used to evaluate the safety of welded structures containing cracks.There are three assessment levels in BS7910. …”
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