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Journal articles on the topic 'Flange'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Ramadan, Osman M. O., Ahmed H. Abdel-Kareem, Hala R. Abousafa, and Ibrahim A. El-Azab. "Nonlinear FE Prediction of Shear Strength of RC T-Beams with Flange in Compression Zone." Journal of Engineering Research and Reports 24, no. 7 (2023): 1–17. http://dx.doi.org/10.9734/jerr/2023/v24i7824.

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This research predicts the shear strength of reinforced concrete T-beams with flanges under compression stresses using nonlinear finite element (FE) analysis. A FE model is developed and verified against specially designed experiments (beams with varying flange width and depth). Results of the FE models were found to be in excellent agreement with their corresponding experimental results. The average load capacity and deflections (FE/experiments) ratios were 1.03 and 0.87, respectively. We then conducted an extensive parametric study to investigate the structural performance of flanged beams u

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2

Gjengedal, Ragnar, Ørjan Fyllingen, and Henrik Sture. "Integrity Evaluation of Steel Flanges Joined with Metallic Gaskets." Key Engineering Materials 554-557 (June 2013): 2187–99. http://dx.doi.org/10.4028/www.scientific.net/kem.554-557.2187.

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System integrity of a flanged connection requires that no leakages occur. Metallic flanges and their joining is of great importance when it comes to avoiding leakages from hydrocarbon lines. The American standard ASTM A182 demands that flanges must be forged to shape, thereby excluding other manufacturing methods. Mechanical properties of duplex stainless steel bars have been examined by doing tensile and charpy tests. A finite element model of a typical ASME-flange assembly was made and was used to calculate stress levels in the flange. The measured mechanical properties of the bar, showed th

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3

Ashish Goyal. "Thermal shock: A flange leakage cause." International Journal of Science and Research Archive 12, no. 1 (2024): 2052–60. http://dx.doi.org/10.30574/ijsra.2024.12.1.0951.

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Flange leakage due to thermal shock is a critical issue in piping systems. This paper presents a comprehensive case study on the impact of thermal shock on flange leakage in piping systems. It explores the phenomenon where a sudden increase in operating temperature can compromise the integrity of flanged joints, leading to leakage. The study delves into the thermal response of flanges and how it can precipitate a loss of bolt loading, resulting in a decrease in gasket seating pressure. Through detailed analysis, the paper discusses the steady-state operation of flanges, temperature variations

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4

Whatham, J. F. "Pipe Bend Analysis by Thin Shell Theory." Journal of Applied Mechanics 53, no. 1 (1986): 173–80. http://dx.doi.org/10.1115/1.3171707.

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Thin shell theory is applied to pipe bends terminated by flanges or flange-ended tangent pipes and subjected to any end loading, either in-plane or out-of-plane. Graphs of flexibility factor versus pipe bend characteristic are presented for in-plane bending of a wide range of pipe elbows terminated by flanges or short flange-ended tangents. Experimental results verify the thin shell solutions for in-plane and out-of-plane bending of a flanged pipe elbow. The capabilities of a computer program BENDPAC are also described.

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5

Ezechukwu, Vincent Chukwuemeka, Ifeanyi Ugochukwu Onyenanu, Gabriel Ayadinuno, Joesph Okwudili Agwaziam, and Charles Okechuku Ojinekeya. "Corrosion Resistance of Developed Bolted Flange Made of Momordica Angustisepala Fiber (MAF) and Breadfruit Seed-Shell Particles (BFSAP)." IPS Journal of Engineering and Technology 1, no. 1 (2025): 34–37. https://doi.org/10.54117/ijet.v1i1.4.

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Connecting pipe systems and pressure vessels requires bolted flanged joints. One of the most frequent reasons why bolted flanged joints leak is corrosion of the flange surface. This research investigates the corrosion resistance of composite bolted flanges made of Momordica angustisepala fiber (MAF) and breadfruit seed-shell particles (BFSAp). The result shows 100% polarization resistance with a corrosion rate of 0.00 mil per year was obtained for the developed composite. This shows that the corrosion problem of a metallic bolted flange can be reduced using the developed composite.

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6

Sinke, J. "Spring Back of Curved Flanges of Rubber Formed Aluminum Parts." Key Engineering Materials 554-557 (June 2013): 1851–55. http://dx.doi.org/10.4028/www.scientific.net/kem.554-557.1851.

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Rubber forming is a common process for the fabrication of flanged metallic parts in the aerospace industry. The process enables cheap tooling, which is important since the product series are limited. In the process a rigid and a soft tool are combined to form a metal blank into the required shape. Most components made in this way are “flanged parts”, i.e. parts with a rather flat web plate and curved flanges at the periphery of the web plate. For flanged parts the determination of spring back of the flanges, straight or curved, is important, since the forming dies compensated with the spring b

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7

Abbas, Rafaa M., and Wesal A. Fadala. "Behavioral Investigation of Reinforced Concrete T-Beams with Distributed Reinforcement in the Tension Flange." E3S Web of Conferences 318 (2021): 03010. http://dx.doi.org/10.1051/e3sconf/202131803010.

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Current design codes and specifications allow for part of the bonded flexure tension reinforcement to be distributed over an effective flange width when the T-beams' flanges are in tension. This study presents an experimental and numerical investigation on the reinforced concrete flanged section's flexural behavior when reinforcement in the tension flange is laterally distributed. To achieve the goals of the study, numerical analysis using the finite element method was conducted on discretized flanged beam models validated via experimentally tested T-beam specimen. Parametric study was perform

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8

Bondarenko, Oleg, and Anatoliy Dziuba. "Sealing of Pipelines Flange Connections in Conditions of Fasteners Tightening Torque Reducing." Applied Mechanics and Materials 630 (September 2014): 283–87. http://dx.doi.org/10.4028/www.scientific.net/amm.630.283.

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Flanged connections are widely used in pipelines of various technical systems. Task of reducing the consumption of materials pipelines , ensuring their long-term tightness is highly relevant for shipbuilding , aviation and space technology and other mashinebuilding. In this paper, the task of deliberately reducing torque fasteners flange connection at build pipelines to ensure the initial tightness of the connection , reducing the weight of the pipeline , the alignment of the stress- strain state of the compound and determining the residual torque fasteners, providing connections for leaks. Wi

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9

Mikulionok, Іgor, Anton Karvatskii, Olena Ivanenko, and Serhii Leleka. "Flange connections of chemical technology equipment and pipelines." Proceedings of the NTUU “Igor Sikorsky KPI”. Series: Chemical engineering, ecology and resource saving, no. 2 (June 30, 2023): 15–31. http://dx.doi.org/10.20535/2617-9741.2.2023.283516.

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The subject of the research is the most common type of detachable joints in chemical, petrochemical, oil refining, food and energy machine and apparatus construction, namely flanged joints of technological and auxiliary equipment, as well as pipelines. The study of the state of the issue and trends in the development of structural and technological design of flanged joints is based on a critical analysis of scientific and technical sources of information and, above all, patent information of the leading countries of the world, since it is in the patent documentation that information is g

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10

Steau, Edward, Poologanathan Keerthan, and Mahen Mahendran. "Web crippling study of rivet fastened rectangular hollow flange channel beams with flanges fastened to supports." Advances in Structural Engineering 20, no. 7 (2016): 1059–73. http://dx.doi.org/10.1177/1369433216670172.

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Thin-walled steel hollow flange channel beams are commonly used as joists and bearers in various flooring systems in buildings. A new rivet fastened rectangular hollow flange channel beam was proposed using an intermittently rivet fastening process as an alternative to welded beams. This flexible fastening process allows rectangular hollow flange channel beams to have greater section optimisation, by configuring web and flange widths and thicknesses. In the industrial applications of rectangular hollow flange channel beams as flooring, roofing or modular building systems, their flanges will be

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11

Alsultani, Alyaa S., and Najla'a H. Al-Shareef. "Flexural Behavior of Rectangular Double Hollow Flange Cold-Formed Steel I-beam." Tikrit Journal of Engineering Sciences 30, no. 4 (2023): 28–35. http://dx.doi.org/10.25130/tjes.30.4.4.

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This research experimentally investigates the flexural behavior of rectangular hollow flange cold-formed steel I-beam (RHFCFSIB) under two concentrated loads at the same distance from the support. All specimens were at a constant clear span of (L=1500mm), a constant beam specifications (t=4mm) web, flange thickness (h=300mm) for beam′s depth, and flange width of (bf=150mm). The connecting distance between the bolts, i.e., connects the web to the flanges, was (L/6), and eight stiffeners for each beam were placed under the load bearing points and at the support points on each side. The experimen

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12

Dragobetskyi, Volodymyr, Oleksandr Kaliuzhnyi, and Volodymyr Kaliuzhnyi. "Increasing the geometric accuracy of flange walls when flanging holes by using profiled sheet metal workpieces." Mechanics and Advanced Technologies 8, no. 4(103) (2024): 385–96. https://doi.org/10.20535/2521-1943.2024.8.4(103).313260.

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Problem. Flanging of holes to produce flanges in sheet metal blanks and profiles is widely used in the manufacture of parts in many industries, including aircraft and instrumentation. Significant disadvantages of flanging holes are the low geometric accuracy of the flanges obtained due to the presence of significant wall thinning along the length of the flanges and the deviation of the flange wall from the cylindrical surface of the hole of the flanging die. The wall deviation occurs due to elastic deformation after the punch is removed from the deformed workpiece. To eliminate such deficienci

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13

Yao, Na Na, Wen Fang Zhang, and Jian Wei Wei. "The Flange Effect of Brick Masonry Wall Subjected to Seismic Effect." Applied Mechanics and Materials 193-194 (August 2012): 1444–48. http://dx.doi.org/10.4028/www.scientific.net/amm.193-194.1444.

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This paper researces the effect of flange width on anti-seismic performance of flanged brick masonry walls. Four T-shaped cross section unreinforced brick masonry walls with different flange width and one rectangular shaped cross section brick masonry wall are studied and analyzed by ABAQUS finite element method.Analyze and compare the force-displacement curves of flanged brick masonry wall under the composed of vertical and lateral load.The results indicate that the flange width has a significant effect on the shear bearing capacity and ductility. The shear bearing capacity and ductility fact

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14

He, Chang, Qiang Xie, and Yong Zhou. "Influence of Flange on Seismic Performance of 1,100-kV Ultra-High Voltage Transformer Bushing." Earthquake Spectra 35, no. 1 (2019): 447–69. http://dx.doi.org/10.1193/122517eqs266m.

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Failures of the metal flange were observed in transformer bushings in previous earthquakes. In order to evaluate the influence of the flange on the seismic responses of 1,100-kV ultra-high voltage (UHV) bushing, two types of flanges were selected, which used different materials and layouts. The finite element (FE) and theoretical analyses were first carried out. The results indicate that there is an out-of-plane rocking effect at the flange bottom plate, and the flange will be damaged if the stiffeners are improperly designed. Then two identical bushings using different flanges were tested on

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15

Bouzid, Abdel-Hakim, and Akli Nechache. "An Analytical Solution for Evaluating Gasket Stress Change in Bolted Flange Connections Subjected to High Temperature Loading." Journal of Pressure Vessel Technology 127, no. 4 (2005): 414–22. http://dx.doi.org/10.1115/1.2042480.

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The tightness of bolted flanged joints subjected to elevated temperature is not properly addressed by flange design codes. The development of an analytical method based on the flexibility of the different joint components and their elastic interaction could serve as a powerful tool for elevated temperature flange designs. This paper addresses the effect of the internal fluid operating temperature on the variation of the bolt load and consequently on the gasket stress in bolted joints. The theoretical analysis used to predict the gasket load variation as a result of unequal radial and axial the

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16

Ellison, Kevin, Spencer G. Sealy, and Hope R. McGaha. "Color Variation Among Nestling Brown-Headed Cowbirds (Molothrus Ater) Does Not Reflect Differential Success With Hosts in Texas." Auk 124, no. 2 (2007): 526–36. http://dx.doi.org/10.1093/auk/124.2.526.

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Abstract As brood parasites, nestling Brown-headed Cowbirds (Molothrus ater) may exhibit characters that improve their fledging success when reared alongside host young. The coloration of mouthparts of nestlings can influence adult care and, thus, the polymorphism of yellow or white rictal flanges among nestling Brown-headed Cowbirds may reflect differential success with different hosts on the basis of flange color. Moreover, because Brown-headed Cowbirds in the southern United States co-occur with Bronzed Cowbirds (M. aeneus), whose young have white flanges, cowbird nestlings' flange colors m

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17

Powell, N. N., and C. Andrew. "Incremental Forming of Flanged Sheet Metal Components Without Dedicated Dies." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 206, no. 1 (1992): 41–47. http://dx.doi.org/10.1243/pime_proc_1992_206_054_02.

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This paper describes research that has investigated a process for forming flanged sheet metal parts without dedicated tooling by repeated localized deformation—an incremental process. The complete formation of a shrink flange over a former by a grooved roller, moving around the flange in a series of passes, is analysed by the finite element method and reasonable agreement with experimental results shown. Some evidence is presented that the use of a grooved roller can extend the forming limits of a conventional single die pressing operation. The predicted reaction distribution at the fixed edge

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18

Sun, Zhen Guo, Bo Qin Gu, and Xing Lu Huang. "Fuzzy Reliability Optimization Design Method of Flange Based on the Tightness of Bolted Flanged Connections." Applied Mechanics and Materials 37-38 (November 2010): 501–4. http://dx.doi.org/10.4028/www.scientific.net/amm.37-38.501.

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Based on the time-correlated leakage model and fuzzy random probability theory, a formula for calculating fuzzy random reliability of sealing performance of bolted flanged connections was derived. The optimization variables were defined according to the sensitivity analysis of design parameters on fuzzy reliability of sealing performance. A fuzzy reliability optimization design method of flange was investigated, in which both the tightness of bolted flanged connections and the strength of flange were taken into consideration. As an example, an integral welding necked pipe flange was designed a

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19

Hakimian, Soroosh, Lucas Hof, and Hakim A. Bouzid. "Investigation of Corrosion in Bolted Flanged Joints Using a Novel Experimental Setup." ECS Meeting Abstracts MA2022-01, no. 16 (2022): 990. http://dx.doi.org/10.1149/ma2022-0116990mtgabs.

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The second most common cause of hydrocarbon leakage is corrosion in offshore platforms. In seawater and hydrocarbon services, bolted flange joints can be susceptible to corrosion on the flange face. Flanges connect pipes, valves, pumps, and other equipment to form a piping system. In flanged joints, two flanges are bolted together with a gasket between them to provide a seal. The current research considers corrosion in bolted flanged gasketed joints and proposes a new approach to quantify corrosion at the gasket and flange interface. According to the literature, both crevice corrosion and galv

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20

Liu, Dongchen, Junli Wang, and Yan Zhang. "Realization of Parameterized Serialization Design of Flanges in Chemical Equipment." Journal of Physics: Conference Series 2218, no. 1 (2022): 012075. http://dx.doi.org/10.1088/1742-6596/2218/1/012075.

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Abstract Flanges are important parts in the fields of machinery, chemicals, wind power, and sewage treatment. They are used in large quantities and have formed a series of products at present. In the paper, the secondary development of AutoCAD was adopted to parameterized series design, and 960 parts from 4 series flange (plate flat welding flange, neck flat welding flange, neck butt welding flange, socket welding flange) were drawn. The efficiency of part design has been significantly improved.

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21

Gemechu, Tigist Demssice, and Linfeng Lu. "Analysis of Factors Affecting the Seismic Performance of Widened Flange Connections in Mid-Flange H-Beams and Box Columns." Buildings 14, no. 10 (2024): 3170. http://dx.doi.org/10.3390/buildings14103170.

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Following the Northridge and Kobe earthquakes, research has increasingly focused on achieving high ductility in beam-to-column connections. This study investigates the seismic performance of connections featuring widened beam-end flanges in mid-flange H-beams and box columns, an area with limited prior research compared to I-section columns and narrow-flange H-beams. Detailed finite element modeling using ABAQUS 6.1.4 demonstrates that widened beam-end flanges significantly improve bending capacity and ductility by relocating the plastic hinge away from the connection, thereby enhancing seismi

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22

Qin, Li, Yuan Miao, and Ya Nan Luo. "The Feasibility Study for New-Type Forging Flange of in Steel Tower." Advanced Materials Research 450-451 (January 2012): 1625–28. http://dx.doi.org/10.4028/www.scientific.net/amr.450-451.1625.

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This paper presents a new-type forging flange used in steel transmission towers, that is to forge a same flange and same bolts in large a forging flange, in order to increase the strength and rigidity. This paper seted up finite element models of inner forging flange and outer forging flange. At the same time the article established finite element models of the new-type forging flange and new-type rigid flange used in engineering.The comparative analysis of the results shows that, the new-type forging flanges greatly improved the strength and rigidity of the joints because of the reasonable st

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URSE, GEORGETA, ION DURBACĂ, and IOLANDA CONSTANŢA PANAIT. "Some research results on the tightness and strength of flange joints." Journal of Engineering Sciences and Innovation 3, no. 2 (2018): 107–30. http://dx.doi.org/10.56958/jesi.2018.3.2.107.

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The paper presents recently published literature research on the tightness and strength of flange joints. These could influence both the calculation and the maintenance of flange joints. Some of the research results have been compared to normative stipulations currently used in the calculation of flange joints. The presentation covers: – the influence of sealing gasket design and screw load on sealing; – the influence of creep on screw relaxation, and thereby on gasket sealing; – cracking in flange joints; – the influence of an additional axial force of flange joints on the rotation and on the

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24

Wang, He Hui, Ya Juan Feng, Wen Min Zhu, and Zhi Ming Zhang. "Finite Element Analysis of Bolted Flanged Joints Subjected to External Loads." Applied Mechanics and Materials 750 (April 2015): 324–29. http://dx.doi.org/10.4028/www.scientific.net/amm.750.324.

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Since external loads affect the sealing performance of bolted flanged joints, this paper calculated external loads of bolted flanged joints by using CAESAR II software and evaluated the effects of external loads on the sealing performance from the viewpoint of changes in contact gasket stress and flange rotation by using ANSYS software. The FE results showed that the contact gasket stress decreases a lot at the tension side and increases a little at the compression side. The paper also evaluated the stress distribution in bolted flanged joints subjected to external loads. The results suggested

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Oharriz, Osmay. "Innovative Polymeric Solution for Flanged Pipework Protection." Materials Performance 55, no. 8 (2016): 44–47. https://doi.org/10.5006/mp2016_55_8-44.

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Pipes are common pieces of equipment throughout many industries, and wherever there are pipes there are likely to be flanges. An innovative solution has been developed for corrosion protection of flanged couplings. The operating environment to which flanged pipework is subjected can lead to external corrosion, metal loss, and seizing of flange bolts, among other problems. These can result in plant shutdowns, waste of valuable resources, efficiency reduction, and costly maintenance expenses. By using a flexible, liquid-applied elastomeric material that can be peeled off for inspection and then

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Sunley, Sergio, Koichi Kusunoki, Taiki Saito, and Carlos Zavala. "Experimental Study on Flexural Behavior of Reinforced Concrete Walls." Journal of Disaster Research 8, no. 2 (2013): 296–304. http://dx.doi.org/10.20965/jdr.2013.p0296.

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Design codes prescribe equations for the ultimate state design of RC walls with flange walls as boundary elements. These codes consider part of the length of the flange wall as a width that will effectively resist lateral loads. However, wall damage and the accuracy of the effective width used in the calculations have not been sufficiently discussed. Therefore, a loading test is carried out at Yokohama National University on two 1/3 scale specimens in order to evaluate the strength, damage, energy dissipation, and behavior of RC structural walls in flexure. One specimen without flange walls an

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27

Choi, Jaehyung, BoÅ¾idar Stojadinovic, and Subhash C. Goel. "Design of Free Flange Moment Connection." Engineering Journal 40, no. 1 (2003): 25–41. http://dx.doi.org/10.62913/engj.v40i1.798.

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The Free Flange connection is a new public-domain beam-to-column moment connection developed at The University of Michigan. This connection is designed to alleviate excessive local deformation and shear force overload of beam flanges in pre-Northridge fully-restrained steel moment connections. These design goals were achieved by cutting the web of the beam back and away from the column, thus creating portions of the beam flanges that are not constrained by the web. Such free portions of beam flanges significantly reduce connection deformation constraints; allow the flange steel to yield freely

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Alghamdi, Abdulmalik A., and Muhsen S. Al-Sannaa. "Two-Dimensional Finite Element Analysis for Large Diameter Steel Flanges." Journal of Pressure Vessel Technology 126, no. 3 (2004): 399–403. http://dx.doi.org/10.1115/1.1767174.

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This paper presents numerical results obtained using Finite Element Analysis (FEA) in studying large diameter welded neck steel flanges under different loading conditions. Obtained FEA results show the effect of the clamping pressure, internal pressure, axial end load, temperature effect, gasket elasticity modulus on the contact pressure between the gasket and the steel flange. As expected clamping pressure is a determinate factor for the sealing condition. Gasket material is another primary factor in designing flanged joints.

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29

Hyde, T. H., and B. J. Marsden. "Stresses in swivel ring flanges due to pressure loading." Journal of Strain Analysis for Engineering Design 21, no. 4 (1986): 225–29. http://dx.doi.org/10.1243/03093247v214225.

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Finite element and photoelastic methods of stress analysis have been used to study the effects of pressure loading on the behaviour of swivel ring flanges. The use of recesses on the back faces of flanges, to control the load position, were investigated. The effect of the friction conditions between the flange and ring were also considered. It was found that the inclusion of a recess can significantly reduce the highest stresses, which occur in the flange/hub fillet radius. The friction conditions between the flange and ring were also found to have a significant effect on the stresses.

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Noda, Nao-Aki, Masato Nagawa, Fumitaka Shiraishi, and Akifumi Inoue. "Sealing Performance of New Gasketless Flange." Journal of Pressure Vessel Technology 124, no. 2 (2002): 239–46. http://dx.doi.org/10.1115/1.1464876.

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This paper deals with a new seal system between two flanges without using gaskets. The system includes a groove and an annular lip that is held by one of the flange with its highest point in contact with the other flange to form a seal line when the flanges are assembled. The condition whether the system leaks or not depends on the shape and dimension of the annular lip and its deformation during the contact. In this study, several gasketless flanges are prepared with different lip dimensions to investigate the contact and sealing condition through an experimental and FEM analyses. The analyse

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Liu, Jianzhao, Yonghui Hou, Hongyan Wang, and Xiangyong Ni. "Experimental and Analytical Study on Shear Lag Effect of T-Shaped Reinforced Concrete Shear Walls." Buildings 14, no. 6 (2024): 1875. http://dx.doi.org/10.3390/buildings14061875.

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Because of the flanges on T-shaped shear walls (TSSWs), the shear force acting on such walls results in a shear lag effect, making it impossible to forecast with accuracy the normal stresses of the flanges using the Bernoulli–Euler assumption. Shear lag (SL) in flanged walls has, however, received less attention from researchers, particularly in experimental studies. Understanding the SL in T-shaped reinforced concrete shear walls under shear and axial force is the main goal of this work. First, a SL model is suggested for TSSWs. In this model, the SL deflection is considered to be the general

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Dowswell, Bo. "Flange Bending in Single Curvature." Engineering Journal 50, no. 2 (2013): 71–88. http://dx.doi.org/10.62913/engj.v50i2.1043.

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Local bending of beam and column flanges is a common design consideration in steel structures. In most cases, the flange bends in double curvature due to the restraining effect of the connecting element. When a restraining force is not present, the flange will deform in single curvature. Common cases of single-curvature bending occur at the bottom flange of monorail beams and at hanger rod connections. In this paper, the equivalent width method was explored in an effort to determine design procedures for elastic and plastic strength of flanges in single-curvature bending.This paper compares th

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Aljuboury, Muhsin, Md Jahir Rizvi, Stephen Grove, and Richard Cullen. "Bolted fibre-reinforced polymer flange joints for pipelines: A review of current practice and future challenges." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 233, no. 8 (2018): 1698–717. http://dx.doi.org/10.1177/1464420718766563.

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Metallic bolted flanges and pipes have both been increasingly replaced by fibre-reinforced polymer materials in many applications which deal with extreme harsh environments such as oil, chemical, marine, etc. This is not only due to the fibre-reinforced polymer material’s resistance to the chemical reaction but also due to their inherent mechanical properties of high strength to weight ratio. However, very little research has been published regarding bolted flange joints made of fibre-reinforced polymer materials. Also, the availability of standards and relevant design codes are very limited f

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Amado, Sebastian F., Norberto M. Amado, and Luciano Hermosa. "Flange depth for scleral pocket vs no pocket techniques for intrascleral intraocular lens fixation." Journal of Cataract & Refractive Surgery 50, no. 5 (2024): 505–10. http://dx.doi.org/10.1097/j.jcrs.0000000000001383.

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Purpose: To compare flange depth for a modified scleral pocket (SP) vs no scleral pocket (NSP) technique (Yamane technique) for intrascleral intraocular lens (IOL) fixation. Setting: Instituto de Oftalmología Santa Fe, Santa Fe, Argentina. Design: Prospective, randomized, single-surgeon, observational study. Methods: Eyes with aphakia and no capsular support were included. They were divided into 2 groups: one was programmed for a double-needle flanged intrascleral IOL fixation as originally described by Shin Yamane with NSP and the second group had a modified SP technique. Flange depth was mea

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Moga, Cătălin, Crina Fenesan, and Mircea Suciu. "Shear Lag and Local Buckling Interaction in Orthotropic Deck of Steel Bridges." Bulletin of the Polytechnic Institute of Iași. Construction. Architecture Section 67, no. 1 (2021): 67–79. http://dx.doi.org/10.2478/bipca-2021-0006.

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Abstract The term of shear lag is related to the discrepancies between the approximate theory of the bending of beams and their real behaviour, and it refers to the increases of the bending stresses near the flange-to-web junctions, and the corresponding decreases in the flange stresses away from these junctions. In the case of wide flanges of plated structures, shear lag caused by shear strains, which are neglected in the conventional theory, may be taken into account by a reduced flange width concentrated along the webs of the steel girders. The effects of the shear lag, plate buckling and i

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Joo, B. D., M. K. Choi, C. J. Van Tyne, and Y. H. Moon. "Process design and experimental verification of hydroforming for flanged tubular part." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 225, no. 11 (2011): 2015–23. http://dx.doi.org/10.1177/0954405411403841.

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Tube hydroforming is a technology that utilizes hydraulic pressure to form a tube into desired shapes inside die cavities. It is widely used in the automotive industry because of its various advantages, such as weight reduction, increased strength, improved quality, and reduced tooling cost. Hydroformed automotive parts used as structural components in the vehicle body frame or the subframe must often be structurally joined at certain locations, and it is useful if these parts can be manufactured with a localized attachment flange. This study proposes a flange hydroforming process, which consi

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Jinescu, Valeriu V., Georgeta Urse, and Angela Chelu. "Evaluation and Completion the Design Methods of Pressure Vessels Flange Joints." Revista de Chimie 69, no. 8 (2018): 1954–61. http://dx.doi.org/10.37358/rc.18.8.6453.

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We have provided a comparative analysis of the current international computing standards (European Standard EN 13445-3; ASME-Code, Section VIII, Division 2; British Standard (PD 5500: 2009)) that take into consideration only the static loading of flanges and bolts, if the temperatures of the flanges, bolts and sealing gasket are equal to each other and lower than creep temperature. The paper has put forth relations for completion the calculation method for flange joints in situations not taken into consideration by standards, namely: � static loading if flange temperature and bolt temperature

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Zahariea, Danut. "Structural Analysis of a Flange Coupling without Clearance." Applied Mechanics and Materials 371 (August 2013): 652–56. http://dx.doi.org/10.4028/www.scientific.net/amm.371.652.

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In this paper the flange coupling without clearance will be analyzed using CATIA Generative Structural Analysis workbench. The structural analysis procedure will be presented: creating the 3D model, configuring the mesh, applying the restraints, applying the loads (torque), applying the interaction conditions (driving flange-bolts and nuts, bolts and nuts-driven flange), running the numerical analysis and results visualization. Two different systems will be analyzed: the first is a six bolts flange coupling working in nominal conditions, the second is a five bolts flange coupling working in so

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Matviychuk, Viktor, and Mykola Kolisnyk. "DEVELOPMENT OF THE COMBINED TECHNOLOGICAL PROCESS OF BLANK STACKS FLANGES FORMATION BY THE METHOD OF STAMPING BY ROLLING AND ROTARY DRAWING." Vibrations in engineering and technology, no. 1(100) (March 23, 2021): 111–21. http://dx.doi.org/10.37128/2306-8744-2021-1-11.

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The article presents the results of the development and research of the combined technological process of forming the outer and inner flanges of the lids of fractional and distillation columns on sheet blanks by the method of stamping by rolling and rotary drawing. For this purpose, equipment has been developed that allows to form both outer and inner flanges of the blank in one run of the conical roll. Studies have shown that technological capabilities of the process are limited by the risk of destruction of the top layers of the outer flange bending center and its corrugation, as well as by

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Venturini, Alessandro, Francesca Papa, and Marco Utili. "Preliminary Experimental Quantification of Helium Leakages from Flanged Connections at HCPB TBS Operative Conditions." Energies 16, no. 14 (2023): 5519. http://dx.doi.org/10.3390/en16145519.

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The HCPB TBS (Helium-Cooled Pebble Bed Test Blanket System) is one of the two European TBSs that will be installed and tested in the ITER reactor. The use of flanged connections in the Helium Coolant System and the Tritium Extraction System of the HCPB TBS would make the remote maintenance operations easier and faster. Therefore, investigating the helium leakage from flanges becomes a fundamental step toward the control of the tritium activity in the Port Cell, as the helium flow will contain a variable but not negligible amount of tritium. The first set of experiments on helium leakages from

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Yin, Xiao Wei, Wen Xue Qian, and Li Yang Xie. "3D Visual Parametric Reliability Design System Development of Flange Based on ProEngineer." Advanced Materials Research 118-120 (June 2010): 116–20. http://dx.doi.org/10.4028/www.scientific.net/amr.118-120.116.

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Flange is a common part in engineering, and it is tedious to build the 3D models of flanges repeatedly. Nowadays 3D modeling softwares are widely used in many engineering fields such as mining machinery, transportation and petrochemical. In practical engineering, it is necessary to compute the reliability of a flange. For these reasons a reliability design system of flange was developed with VC and Protoolkit. In this system, we only need to input several parameters to build a flange model and to compute its reliability. Also it is easy to determine the key sizes of a flange with an appointed

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Nelson, N. Rino. "Behaviour of flange joints in Steam Generator under thermal loads." E3S Web of Conferences 309 (2021): 01082. http://dx.doi.org/10.1051/e3sconf/202130901082.

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Pressure vessels such as steam generators are subjected to high temperature, in addition to high pressure during the operating condition. Flanges and bolts are made up of different materials whose coefficient of thermal expansion varies. Usually, thermal expansion in bolts is greater than that of flanges. At elevated temperatures bolts expand more than that of flanges, resulting in decrease of compression in connected members achieved during assembly stage, which in turn decreases the contact stress in gasket. This can lead to leakage of internal fluid. The loss in gasket contact stress due to

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Al-Saeedi, Saleem Mohammed Ali Ahmed, Linfeng Lu, Osama Zaid Yahya Al-Ansi, and Saddam Ali. "Hysteretic Behavior Study on the RBS Connection of H-Shape Columns with Middle-Flanges or Wide-Flange H-Shape Beams." Buildings 15, no. 1 (2025): 147. https://doi.org/10.3390/buildings15010147.

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Existing research on reduced beam section (RBS) connections in steel frames rarely addresses H-shaped beams with middle and wide flanges. Therefore, this study investigates the hysteretic behavior of RBS connections in H-shaped columns connected to H-shaped beams with middle and wide flanges. Using finite element analysis, the influence of key parameters (a, b, and c, where “a” represents the unweakened beam flange extension length, “b” represents the weakened beam flange length, and “c” represents the weakened beam flange depth, respectively) on structural performance was evaluated, focusing

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Oh, Sang-Hoon, Young-Ju Kim, and Tae-Sup Moon. "Cyclic performance of existing moment connections in steel retrofitted with a reduced beam section and bottom flange reinforcements." Canadian Journal of Civil Engineering 34, no. 2 (2007): 199–209. http://dx.doi.org/10.1139/l06-125.

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This study investigated the effectiveness of retrofit methods in improving the deformation capacity of existing moment connections in composite beams. Nonlinear finite element analysis was also performed to identify the cause of the connection failure prior to testing. Tests included one conventional specimen and four retrofit specimens. Three retrofit methods were introduced: a reduced beam section (RBS) only, an RBS with bottom flange reinforcement (RBR), and an RBS-shaped bottom flange reinforcement (RSR). A composite beam performs differently than a bare steel shape because the concrete co

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ROMAN, GEORGETA, and DRAGOȘ ALEXANDRU APOSTOL. "Influence of bolts bending on the strength of flanges joints of pressure vessels." Journal of Engineering Sciences and Innovation 6, no. 1 (2021): 31–40. http://dx.doi.org/10.56958/jesi.2021.6.1.3.

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This paper highlighted the shortcomings of the current international normative on the calculation of flanges joints with gasket situated inside the circle of bolts holes. The current codes do not take into account, when calculating the flanged joints of the vessels, the bending stress that occurs as a result of the movement of the plates of the joint subjected to internal pressure. The bending of the bolts influences the deformation of the sealing gasket and – namely – the sealing of the flange joint. The knowledge of the bolts bending stresses allows to increase the time between two revisions

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Рытова, Т. Г., И. С. Игольников, Л. А. Максимова та Н. Г. Козина. "Уменьшение толщины фланца в соединениях из замкнутых профилей". Вестник Чувашского государственного педагогического университета им. И.Я. Яковлева. Серия: Механика предельного состояния, № 3(61) (19 грудня 2024): 60–69. https://doi.org/10.37972/chgpu.2024.61.3.006.

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В российских нормах с целью упрощения расчета фланцевых соединений за основу взята гипотеза недеформируемой плоскости контакта фланца. Для достижения данной гипотезы приходится применять достаточно толстые фланцы и болты высокого класса прочности. Несмотря на широкое распространение фланцевого соединения, истинная механика поведения работы узла до сих пор не изучена. Предметом исследования является изучение влияния параметров узла фланцевого соединения на несущую способность. In Russian standards, to simplify the calculation of flange connections, the hypothesis of a non-deformable contact pla

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Liu, Hao, Jianjun Wang, Yu Liu, Zhi Wang, and Yifu Long. "Stiffness Characteristics and Analytical Model of a Flange Joint with a Spigot." Symmetry 15, no. 6 (2023): 1221. http://dx.doi.org/10.3390/sym15061221.

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Flange joints with spigots are widely used in aero-engines. The spigot will restrict the shear slipping between flanges, which, in turn, affects the stiffness characteristics of the joint. The current model and research on flange joints without spigots may not be suitable for the dynamic characteristics of aero-engines. Moreover, the complexity of contact pairs limits the application of the flange joint finite element (FE) model in aero-engine dynamics analysis. Therefore, a simplified analytical model of a flange joint with a spigot is proposed in this paper. First, the stiffness characterist

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Moga, Cătălin, Claudia Pondichi-Alb, and Mircea Suciu. "Effect of Design Parameters on Shear Lag in Orthotropic Deck of Steel Road Bridges." Bulletin of the Polytechnic Institute of Iași. Construction. Architecture Section 67, no. 2 (2021): 95–104. http://dx.doi.org/10.2478/bipca-2021-0018.

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Abstract The phenomenon of shear lag refers to the increases of the bending stresses near the flange-to-web junctions, and the corresponding decreases in the flange stresses away from these junctions. In the plated structures with wide flanges, such as in the orthotropic deck of the steel road bridges, shear lag caused by shear strains, may be taken into account by a reduced flange width concentrated along the webs of the steel plate girders. In the norm EN 1993-1-5, the concept of taking shear lag into account is based on effectives width of the flange which is defined in order to have the sa

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Zhang, Zhe, Wenhao Jin, Enfeng Deng, et al. "Shear Behavior and Design of Innovative Stud-Reinforced Embedded Shear Connectors with Flanges." Buildings 14, no. 3 (2024): 632. http://dx.doi.org/10.3390/buildings14030632.

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The embedded shear connector with flanges (ESCF) exhibits excellent shear performance in the steel–concrete composite beam. The ESCF consists of embedded corrugated steel web as the shear connector and shape-matched flanges for construction convenience. However, previous research showed that the steel flange of the ESCF was prone to local buckling when subjected to shear force, resulting in insufficient shear strength of the connector. In this paper, head studs were adopted to reinforce the ESCF at the flange with a large width-to-thickness ratio. Nine stud-reinforced embedded shear connectors

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Wang, Feng, Chun Shi, Yu Ran Fan, and Ai Qing Ma. "Fracture Analysis on Cracking of 16Mn Flange." Advanced Materials Research 834-836 (October 2013): 623–28. http://dx.doi.org/10.4028/www.scientific.net/amr.834-836.623.

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16Mn flanges cracked during producing.Physical and chemical analysis of the cracking 16Mn flange were performed,it was found that the chemical composite of 16Mn flange agreed well with standard NB/T 47008-2011,but the physical properties of it were abnormal,the sharpy values of which were far below standard requriemet.furthermore,the metallographic of the cracking 16Mn flange were bulky network polygonal ferrite and pearlite.And this was the main reason that caused the failure.And on the end some control motheds were suggested to this accident.

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