Elastic-plastic stress-strain state and strength of thick-walled pipe under the action of internal pressure

Barashkov, V. N.; Shevchenko, M Yu

doi:10.1088/1742-6596/1214/1/012008

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…Many elastic or elastic-plastic stress analyses and limit load analyses are publicly available for thick-wall cylinders under internal pressure, such as those by Ayob et al [24] and Barashkov and Shevchenko [25]. Thus, the detailed stress and strain analyses will not be presented in this work.…”

Section: Determination Of Burst Pressure For Thick-wall Pressure Vesselsmentioning

confidence: 99%

New Strength Theory and Its Application to Determine Burst Pressure of Thick-Wall Pressure Vessels

Zhu¹,

WIERSMA²,

Sindelar³

et al. 2022

Volume 4B: Materials and Fabrication

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The classical Tresca and von Mises strength theories have been utilized extensively for pressure vessel and pipeline design. For pressure vessel design, ASME B&PV code was developed using both Tresca and von Mises strength theories, where the yield strength (YS) was used for an elastic design and the ultimate tensile strength (UTS) was used for an elastic-plastic design. For pipeline design, ASME B31.3, B31G, or other codes were developed using the Tresca strength theory coupled with the YS or a flow stress. The flow stress was introduced to reduce over conservatism from the YS and avoid overestimation from the UTS for many steels. It has been widely accepted that the burst strength of pipelines depends on the UTS and strain hardening rate, n, of the ductile steel. The average shear stress yield theory was thus developed, and the associated burst pressure solution was obtained as a function of UTS and n. Experiments showed that the Zhu-Leis solution provides a reliable prediction of the burst pressure for defect-free thin-wall pipes. In order to extend the Zhu-Leis solution to thick-wall pressure vessels, this work modified the traditional strength theories and obtained new burst pressure solutions for thick-wall pressure vessels. Three new flow stresses were proposed to describe the tensile strength and plastic flow response for a strain hardening material. The associated strength theories were then developed in terms of the Tresca, von Mises and Zhu-Leis yield criteria. From these new strength theories, three burst pressure solutions were obtained for thick-wall cylinders, where the von Mises solution is an upper bound prediction, Tresca solution is a lower bound prediction, and the Zhu-Leis solution is an averaged prediction of burst pressure for thick-wall vessels. Subsequently, the proposed burst solutions were validated by a large dataset of full-scale burst tests.

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Section: Determination Of Burst Pressure For Thick-wall Pressure Vesselsmentioning

confidence: 99%

New Strength Theory and Its Application to Determine Burst Pressure of Thick-Wall Pressure Vessels

Zhu¹,

WIERSMA²,

Sindelar³

et al. 2022

Volume 4B: Materials and Fabrication

View full text Add to dashboard Cite

show abstract

Modelling of a production process of irreversible strains in a material of a thick-walled cylindrical tube under the influence of inner pressure

Kovtanyuk

Panchenko

2021

Meccanica

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Verification of the iterative procedure for solving the elastoplastic Kirsch problem on the Lame problem

Bukhalov

Popov

2020

J. Phys.: Conf. Ser.

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An iterative procedure for solving the elastoplastic Lame problem was proposed to further develop an iterative solution of the elastoplastic Kirsch problem. A ring under an external pressure is considered at which a certain plastic zone arises in the ring. The proposed iterative procedure for solving the elastoplastic Lame problem consists in an explicit analytical representation for stresses in the plastic region and the iterative technique for an elastic analytical solution. Furthermore, the plastic zone radius is beforehand unknown. The convergence of the iterative procedure for the elastoplastic Lame problem is shown in comparison with well-known analytical solution to this problem in elastoplastic formulation. A numerical-analytical iterative solution of the Lame problem in elastoplastic formulation is given for various external pressure and internal radius of the ring. Shows the convergence of numerical-analytical iterative solutions the problem in comparison with numerical solutions in elastoplastic formulation.

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Elastic-plastic stress-strain state and strength of thick-walled pipe under the action of internal pressure

Cited by 3 publications

References 3 publications

New Strength Theory and Its Application to Determine Burst Pressure of Thick-Wall Pressure Vessels

New Strength Theory and Its Application to Determine Burst Pressure of Thick-Wall Pressure Vessels

Modelling of a production process of irreversible strains in a material of a thick-walled cylindrical tube under the influence of inner pressure

Verification of the iterative procedure for solving the elastoplastic Kirsch problem on the Lame problem

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