Design optimization for a three-layers shrink-fitted pressure vessel exposed to very high pressure

Abdelsalam, Ossama R.

doi:10.1088/1757-899x/610/1/012077

Cited by 5 publications

(3 citation statements)

References 9 publications

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“…On the other hand, the hot ring can damage the rod if it dislocates from its axis or if the compressive stresses applied to the ring increase the tensile strength [22]. This method could also significantly change the stress and strain profile and generate considerable tensile stresses on the surface [23]. It may initiate cracks that propagate and eventually lead to specimen failure [14,24].…”

Section: Reinforcement Of Toolingsmentioning

confidence: 99%

Reinforcement of Tooling Using Residual Stresses Generated by Cladding by Arc Welding

Israr

Buhl

Härtel

et al. 2022

Metals

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Cladding is typically used to protect components from wear and corrosion while also improving the aesthetic value and reliability of the substrate. The cladding process induces significant residual stresses due to the temperature difference between the substrate and the clad layer. However, these residual stresses could be effectively utilized by modifying processes and geometrical parameters. This paper introduces a novel methodology for using the weld-cladding process as a cost-effective alternative to various existing reinforcement techniques. The numerical analyses are performed to maximize the reinforcement of a cylindrical tool. The investigation of how the weld cladding develops compressive stresses on the specimen in response to a change in the weld beads and the welding sequence is presented. For the benchmark shape, experimental verification of the numerical model is performed. The influence of the distance between the weld beads and the effect of the tool diameter is numerically investigated. Furthermore, the variation in compressive stresses due to temperature fluctuations during the extrusion process has been evaluated. The results showed that adequate compressive stresses are generated on the welded parts through the cladding process after cooling. More compressive stresses are induced in the tool as the cross-section of the weld bead is increased. Furthermore, keeping a gap between the adjacent beads improves tool reinforcement. Hence, the targeted reinforcement of the substrate can be achieved by optimizing the welding sequence and process parameters.

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Section: Reinforcement Of Toolingsmentioning

confidence: 99%

Reinforcement of Tooling Using Residual Stresses Generated by Cladding by Arc Welding

Israr

Buhl

Härtel

et al. 2022

Metals

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“…Siva Krishna Raparla analysed a multilayer high pressure vessel numerically [11]. An optimization of a three-layer pressure vessel was carried out by Ossama R. Abdelsalam [12]. Anwar Kandil investigated a pressure vessel under constant and cyclic loading both analytically and numerically [13].…”

Section: Introductionmentioning

confidence: 99%

Characteristics of stress distribution of a multi layered cylindrical pressure vessel

Somadder¹,

Das²,

Islam³

2023

Journal of Mechanical and Energy Engineering

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The operation of a multilayer pressure vessel subjected to thermomechanical loads is very significant. The cylindrical pressure vessel is widely used in industrial engineering, for example, to hold a variety of different types of liquid. On thick-walled cylinders, various loading circumstances such as internal overpressure, external overpressure, heat, bending, twisting, and combinations of these load characteristics are applied. Researchers have developed a number of strategies for enhancing the strength of cylinders, including the use of multilayer cylinders and increasing the thickness of the walls. This paper presents the results of an analytical and numerical analysis of a three-layer cylinder. Abaqus FEA software is used to determine temperature, displacement, and stress distribution of multilayer cylinder considering the effect of centripetal and centrifugal heat flow. From the numerical analysis it is observed that centrifugal heat flux is more hazardous than centripetal heat flux for multilayered cylinder under thermo-mechanical loading.

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“…In order to increase fatigue life, imperishability and pressure load capacity or even reduce the mass of these cylindrical shells, researchers and practitioners have tried to cope with these margins by designing multilayer or FG shrink-fitted cylinders. [10][11][12] Also, shrink-fits are increasingly replacing conventional fastening devices in mechanical engineering as they are efficient means of connecting two cylindrical parts. Some examples are cutting tool holders, railway wheels and gears on shafts.…”

Section: Introductionmentioning

confidence: 99%

Mechanical analysis of shrink-fitted thick FG cylinders based on first order shear deformation theory and FE simulation

Kolahi

Rahmani

Moeinkhah

2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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In this paper, the first order shear deformation theory is used to derive an analytical formulation for shrink-fitted thick-walled functionally graded cylinders. It is assumed that the cylinders have constant Poisson’s ratio and the elastic modulus varies radially along the thickness with a power function. Furthermore, a finite element simulation is carried out using COMSOL Multiphysics, which has the advantage of defining material properties as analytical functions. The results from first order shear deformation theory are compared with the findings of both plane elasticity theory and FE simulation. The results of this study could be used to design and manufacture for elastic shrink-fitted FG cylinders.

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Design optimization for a three-layers shrink-fitted pressure vessel exposed to very high pressure

Cited by 5 publications

References 9 publications

Reinforcement of Tooling Using Residual Stresses Generated by Cladding by Arc Welding

Reinforcement of Tooling Using Residual Stresses Generated by Cladding by Arc Welding

Characteristics of stress distribution of a multi layered cylindrical pressure vessel

Mechanical analysis of shrink-fitted thick FG cylinders based on first order shear deformation theory and FE simulation

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