Analysis of strength and eigenfrequencies of a steel vertical cylindrical tank without liquid, reinforced by a plain composite thread

Tursunkululy, Timur; Zhangabay, Nurlan; Suleimenov, Ulanbator; Abshenov, Khassen; Utelbayeva, Akmaral; Moldagaliyev, Arman; Kolesnikov, Alexandr; Turashova, Zhansaya; Karshyga, Galymzhan; Kozlov, Pavel

doi:10.1016/j.cscm.2023.e02019

Cited by 13 publications

(18 citation statements)

References 23 publications

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“…In the future, it will give ideas about the mechanics of crack propagation formed on the surface of manistral gas pipelines. As a result, this will provide an initial understanding for the further application of the prestressing method for the localization of longitudinal propagation in gas pipelines, previously substantiated in the published works of the authors [59][60][61][62][63][64]. Indeed, there is a need to study the issue of steel gas pipeline failures with further development of a method for their prevention, which is very actual at the national scale, as today the wear of gas pipelines in the Republic of Kazakhstan is more than 70% [65].…”

Section: Introductionmentioning

confidence: 58%

“…It can also be noted that the influence of the temperature on the crack development was not taken into account and will be further investigated. For future investigations, a method for the localization of longitudinal fractures in steel gas pipelines with the application of prestressing will also be developed [59][60][61][62][63][64]. This methodology could be applied by national, international, and private companies engaged in natural gas transportation to the issue of gas pipelines strengthening without stopping their working operations.…”

Section: Results On the Stress-strain State And Destruction Of The Ga...mentioning

confidence: 99%

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Finite-Element Modeling of the Dynamic Behavior of a Crack-like Defect in an Internally Pressurized Thin-Walled Steel Cylinder

Zhangabay,

Ibraimova,

Bonopera

et al. 2024

Applied Sciences

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This article presents one part of a study on the dynamic deformation and fracture of sections of steel gas pipelines with an external crack-like defect under the action of internal pressure. This work was performed on the basis of finite-element simulations using a cylindrical shell model executed by ANSYS-19.2 on the example of the section of the steel gas pipeline “Beineu–Bozoy–Shymkent” in the Republic of Kazakhstan. The propagation of the incipient crack-like defect along the pipeline and the resulting dynamic fracture in its tip area were investigated. The options of pipeline loading by working and critical internal pressure were both considered. It was found that, within the time of 1.0 ms, the formed crack expanded in the circumferential direction up to the maximum value, which depended on the value of the internal pressure. A further growth of cracks occurred along the longitudinal direction. At the operating pressure, the initial length of the crack increased by a factor of 5.6, while the equivalent stresses increased by a factor of 1.53 within 3.5 ms. Within the time of 3.75 ms, the equivalent stresses stopped growing due to the gas decompression. Specifically, there was a stop to the crack growth along the longitudinal direction. Vice versa, at the maximum pressure, the pipeline fracture did not change qualitatively, while at the time of the process, it decreased up to 3.5 ms. The finite-element results of the stress–strain state and pipeline fracture in the crack tip area at the working pressure showed that, within the time of 1.0 ms, the distance between the crack walls reached 23 mm at the free edge. Conversely, within the time periods of 2.25 and 3.5 ms, it increased two and three times, respectively. The crack elongation in the longitudinal direction occurred 5.8 times with time. Together, within the time of 3.5 ms, the equivalent stresses increased twice, after which the growth of the crack stopped due to the gas decompression. Moreover, studies on the growth of the crack-like defect in its tip area at the maximum pressure showed that additional considerations on the pressure on the crack edges led to an increment of 3.6% of the crack length. The results of this work can be used for the development of measurements for operating gas pipelines in the field of structural reinforcement.

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Section: Introductionmentioning

confidence: 58%

Section: Results On the Stress-strain State And Destruction Of The Ga...mentioning

confidence: 99%

Finite-Element Modeling of the Dynamic Behavior of a Crack-like Defect in an Internally Pressurized Thin-Walled Steel Cylinder

Zhangabay,

Ibraimova,

Bonopera

et al. 2024

Applied Sciences

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“…The amount of pressure on the wall of the tank from the winding can be changed by tensioning the filament in the winding. The pressure value depends on such parameters as the pitch of the winding turn, the thickness of the thread, and the force of its tension [14][15][16]. This pressure partially compensates for the effect of the hydrostatic pressure of the oil.…”

Section: The Study Materials and Methodsmentioning

confidence: 99%

“…The model of free vibrations of a tank without liquid is considered in [15]. A similar model, but with the use of composites as a winding, was built in study [16]. However, in these works, the vibration frequencies of the tank wall were investigated without taking into account prestresses.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

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Oscillation frequencies of the reinforced wall of a steel vertical cylindrical tank for petroleum products depending on winding pre-tension

Tursunkululy,

Zhangabay,

Avramov

et al. 2023

EEJET

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This paper reports a study of the frequencies and vibration modes of a vertical steel tank with a variable wall thickness in the ANSYS software suite using a finite-element model of vibrations of a tank with a volume of 3000 m3 for oil and petroleum products, hardened by a prestressed winding. The simulation was carried out for two variants of fixing the upper edge of the tank wall, which correspond to cases of absence or presence of tank coating. The estimation cases for the coefficients of the tension force of the wire relative to its tensile strength were investigated: at k1=0.2; k2=0.4; k3=0.6 and k4=0.8. Variation studies were carried out both taking into account the additional loads caused by the action of hydrostatic pressure from the maximum and half poured oil into the tank, and without oil. The magnitude of changes in the vibration frequencies of the tank wall without the influence of the coating varies within 12–27 % and when taking into account the influence of tank coating, 21–62 %, depending on the degree of filling of the tank. The revealed pattern relates to the fact that a decrease in the tension force of the filament in the winding leads to an increase in the frequency of oscillations. Thus, pre-stress can be applied to regulate the oscillation frequency of the tank wall. By decreasing which in the winding, it is possible to increase the natural frequencies of the wall and to lower the frequencies through an increase in the prestress. The research results can be used in the future as anti-seismic measures in the design and construction of steel vertical cylindrical tanks, as well as to improve the strength characteristics of existing cylindrical structures

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Thermophysical indicators of elaborated sandwich cladding constructions with heat-reflective coverings and air gaps

Zhangabay,

Baidilla,

Tagybayev

et al. 2023

Case Studies in Construction Materials

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Analysis of strength and eigenfrequencies of a steel vertical cylindrical tank without liquid, reinforced by a plain composite thread

Cited by 13 publications

References 23 publications

Finite-Element Modeling of the Dynamic Behavior of a Crack-like Defect in an Internally Pressurized Thin-Walled Steel Cylinder

Finite-Element Modeling of the Dynamic Behavior of a Crack-like Defect in an Internally Pressurized Thin-Walled Steel Cylinder

Oscillation frequencies of the reinforced wall of a steel vertical cylindrical tank for petroleum products depending on winding pre-tension

Thermophysical indicators of elaborated sandwich cladding constructions with heat-reflective coverings and air gaps

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