Structural integrity and sealing behaviour of bolted flange joint: A state of art review

Nelson, N. Rino; Prasad, N. Siva; Sekhar, A. S.

doi:10.1016/j.ijpvp.2023.104975

Cited by 13 publications

(6 citation statements)

References 119 publications

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“…A spiral wound gasket, which is made of metal rings for stability and filler that predominates in sealing performance, can be treated as a composite material. The uniaxial compressive behaviour of spiral wound gaskets from the micromechanical model is in reasonable agreement with experimental values, as shown in [ 5 ]. A better gasket stress distribution can be obtained using the micromechanical model, assuming that only half of the gasket width is effective for sealing [ 32 ].…”

Section: Introductionsupporting

confidence: 82%

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Basic Design Parameters Influencing on Axial Stiffness of the Spiral Wound Gasket

Jaszak,

Grzejda,

Kluczyński

et al. 2023

Materials

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The article presents the influence of important design parameters of a spiral gasket on axial stiffness and leakage level. These parameters were the angle of inclination of the central part of the spiral section, the length of the vertical part of the spiral section, and the degree of densification of the material filling the metal coils. The scope of work was divided into two stages. In the first, experimental tests were conducted to determine the stiffness and tightness of a standard spiral gasket at two extreme levels of densification of the filler material, and the elastic–plastic properties of expanded graphite, which is the filler material of the metal spirals, were determined. In the second stage, multivariate numerical calculations were carried out to determine the axial stiffness of the gasket and to evaluate the distribution of contact pressure on the sealing surface. A novel aspect of the work is the proposal of a mathematical model to estimate the averaged value of the modulus of elasticity of the filler material as a function of the degree of densification and the execution of an experimental plan that significantly allowed the adoption of a limited number of analysed model variants used in the numerical calculations.

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Section: Introductionsupporting

confidence: 82%

“…The idea behind the construction of such gaskets is to make a spiral part (which is made of a metal strip) with alternately wound soft filler. The metal strip gives the gasket adequate elasticity and strength, while the filler is responsible for the tightness [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Basic Design Parameters Influencing on Axial Stiffness of the Spiral Wound Gasket

Jaszak,

Grzejda,

Kluczyński

et al. 2023

Materials

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“…Bolts, which are widely used in a slip-resistant or in bearing connections, are involved in transferring external force between two components [2]. The ultimate and fatigue resistance prediction of bolts exposed to multiaxial loading is important for the design of bolted connections.…”

Section: Introductionmentioning

confidence: 99%

“…Evaluation of structural integrity in the whole life cycle is of importance in the design and construction of steel structures [1][2]. Throughout their service life, steel structures are subjected to occasionally extreme loading [3] and regularly cyclic loading [4].…”

Section: Introductionmentioning

confidence: 99%

Recent progress in computational predictions on fatigue and fracture resistance of steel connection joints

Xin

2023

ce papers

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Steel structures are often subjected to cyclic loads, and sometimes to monotonic overloads, during the technical lifetime, which causes their performance degradation. Incidentally, they undergo progressive collapse, especially due to local failure of connections or joints. To ensure the overall integrity of the steel structures and to make sure the efficient transfer of the load between different components, it is necessary to evaluate the ultimate capacity and fatigue resistance of steel connections. Advances in material modelling and well‐controlled experiments at various scales in recent years have increased confidence in the finite element method as an effective way to predict the ultimate resistance and fatigue life. On examples of two common steel connections: bolted connection and welded connection, the recent progress will be presented in ductile fracture and fatigue crack initiation and propagation simulation.

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“…The gasket is the core component of the bolted flanged connections. With the extension of service time, the material performance is deteriorating, and the sealing performance and reliability of the bolted flanged connections are declining (Nelson et al , 2023; Aljuboury et al , 2021; Elkhlaidy et al , 2023). Therefore, it is necessary to study the life of the gasket sealing system (Liao et al , 2020; Zhou et al , 2023), seek the life distribution law of the gasket, accurately predict its life and take effective preventive measures as early as possible to avoid the occurrence of malignant accidents.…”

Section: Introductionmentioning

confidence: 99%

Study on life distribution and prediction method of flexible graphite composite reinforced gasket

Zhang,

Shao,

Kong

et al. 2023

ILT

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Purpose This paper aims to prevent gasket sealing failure in engineering, accurately predict gasket life, extend system life and improve sealing reliability. The accelerated life test method of flexible graphite composite–reinforced gaskets is established, the life distribution law of flexible graphite composite–reinforced gaskets is revealed, and the life prediction method of flexible graphite composite–reinforced gaskets with different allowable leakage rates is proposed, which can provide a reference for the life prediction of other types of gaskets. Design/methodology/approach In this study, flexible graphite composite–reinforced gaskets were tested for long-term high-temperature sealing performance on a multi-sample gasket accelerated life test rig. The data were also analyzed using the least squares method and the K-S hypothesis calibration method. A gasket time-dependent leakage model and an accelerated life model were also developed. Constant stress-accelerated life tests were conducted on flexible graphite composite–reinforced gaskets. On this basis, a gasket life prediction method at different allowable leakage rates was proposed. Findings The life distribution law of flexible graphite composite–reinforced gaskets is revealed. The results show that the life of the gasket obeys the Weibull distribution. The time-correlated leakage model and accelerated life model of the gasket were established. And the accelerated life test method of the flexible graphite composite–reinforced gasket was established. The life distribution parameters, accelerated life model parameters and life estimates of gaskets were obtained through tests. On this basis, a gasket life prediction method under different leakage rates was proposed, which can be used as a reference for other types of gaskets. Practical implications The research in this paper can better provide guidance for the use and replacement of gaskets in the project, which is also very meaningful for predicting the leakage condition of gaskets in the bolted flange connection system and taking corresponding control measures to reduce energy waste and pollution and ensure the safe operation of industrial equipment. Originality/value A multi-specimen gasket-accelerated life test device has been developed, and the design parameters of the device have reached the international advanced level. The life distribution law of the flexible graphite composite–reinforced gasket was revealed. The accelerated life test method for the flexible graphite composite–reinforced gasket was established. The life prediction method of the flexible graphite composite–reinforced gasket under different allowable leakage rates was proposed. Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-08-2023-0254/

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Structural integrity and sealing behaviour of bolted flange joint: A state of art review

Cited by 13 publications

References 119 publications

Basic Design Parameters Influencing on Axial Stiffness of the Spiral Wound Gasket

Basic Design Parameters Influencing on Axial Stiffness of the Spiral Wound Gasket

Recent progress in computational predictions on fatigue and fracture resistance of steel connection joints

Study on life distribution and prediction method of flexible graphite composite reinforced gasket

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