Torsional structural behavior of composite rubber hose for offshore applications

Wei, Daifeng; An, Chen; Wu, Changxu; Duan, Menglan; Estefen, Segen F.

doi:10.1016/j.apor.2022.103333

Cited by 9 publications

(5 citation statements)

References 24 publications

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“…In order to predict the behavior of materials from which flexible pipelines are made from various factors that affect them during their work, it is necessary to conduct research into their physical and mechanical properties. Several authors [2][3][4][5][6][7][8][9][10][11][12][13][14][15] report these studies. The study of the physical and mechanical properties of pressurized fire hoses under the influence of various factors is complicated by the fact that the material from which they are made is composite and anisotropic.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…In [4], the change in the physical and mechanical properties of a marine rubber hose during twisting is investigated depending on the change in the winding angle of the cords and the steps of the spirals of the wire of the reinforcing layer. Research has found that the forces in odd-numbered cord layers and even-numbered cord layers are completely different, and the helix pitches and cord angles have a large effect on the torsional stiffness of the rubber hose.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

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Determining the influence of an artificial defect on the mechanical properties of a flexible pipeline material during a rupture test

Nazarenko,

Kovalenko,

Kalynovskyi

et al. 2023

EEJET

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The object of research is the phenomenon of influence of hidden defects on the mechanical properties of the material of flexible pipelines. T-type pressure fire hoses with an inner diameter of 77 mm were used as test samples of flexible pipelines. During the operation of pressurized fire hydrants and their laying on vertical surfaces, they are subjected to significant bursting pressures in their longitudinal direction. That is, such operating modes of the sleeve may occur during its operation. The research was carried out on the FP 100/1 bursting machine, in which the test samples were fixed. The dependence of the stiffness and normal elasticity of the material of the flexible pipeline on the depth and length of the artificial defect when testing it for breaking has been established. With an artificial defect depth of 0.2 mm and its length from 0 to 40 mm, the stiffness of the flexible pipeline material decreases from 573.812 kN/m to 478.276 kN/m. With the indicated values of the defect, the normal elasticity ranged from 86.46 MPa to 64.567 MPa. When the depth of the defect increases by 0.4 mm, the stiffness of the sleeve material decreases to 432.902 kN/m, and the normal elasticity decreases to 58.442 MPa. The obtained results are explained by the fact that when the thickness of the threads of the base of the power frame is reduced by 33 %, the longitudinal stiffness and normal elasticity of the material of the flexible pipeline are reduced by 25 % and 26 %, respectively. The results of these studies are needed in practice because they can make it possible to develop new or improve existing methods of detecting hidden defects in the material from which flexible pipelines are made

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Determining the influence of an artificial defect on the mechanical properties of a flexible pipeline material during a rupture test

Nazarenko,

Kovalenko,

Kalynovskyi

et al. 2023

EEJET

View full text Add to dashboard Cite

show abstract

“…The embedded technology is used to simulate the interaction of each material, and the rebar element is used to simulate the mechanical behavior of the fiber cord. [18] and Gao et al (2018) [9] use the embedded technology and the rebar element to simulate the mechanical behavior of the same type composite hose under the torsional load and the inner pressure, and uses a series of tests to verify the validity of the finite element model. At the same time, riks method is a effective technique for buckling and crushing analysis.…”

Section: Finite Element Model Of Submarine Hosementioning

confidence: 99%

Effect of Winding Steel Wire on the Collapse Pressure of Submarine Hose

Wei

Zhang

et al. 2022

JMSE

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The submarine hose plays a vital role in the single-point mooring system and is a necessary channel for medium transportation. Once crushed under the load of the seawater external pressure, it will cause oil and gas leakage and major safety accidents. It is a composite hose composed of a rubber layer, cord layer and steel helix wire, of which the steel helix wire plays an important part in bearing mechanical properties. In this work, python language was used to model the submarine hose parametrically, the finite element (FE) analysis software ABAQUS was utilized to analyze the ultimate bearing capacity of the hose under uniformly distributed external pressure loads and the influence of the initial ovality of the submarine hose, the diameter and pitch of the helix wire, the yield strength of the helix wire material on the ultimate bearing capacity of the submarine hose were studied. Through a large number of FE results, the ultimate bearing capacity of the hose was obtained by fitting the prediction formula.

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“…R ubbers serve many purposes across an extensive array of products, encompassing essential items such as automobile tires, conveyor belts, hoses, seals, gaskets, gloves, footwear, and sports equipment [1][2][3][4][5][6][7][8]. Their versatile applications extend into the manufacturing and construction sectors, where they are employed for insulation and as a fundamental material for the fabrication of various components.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Effect of Resin Content on the Stress Relaxation of poly (epichlorohydrin-co-ethylene oxide) based Elastomer

Aksüt

2024

Hacettepe Journal of Biology and Chemistry

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In this study, the effect of C9/C10 aromatic hydrocarbon resin (Novares TL 100) and resin amount on the curing and thermo-mechanical properties of poly(epichlorohydrin-co-ethylene oxide) based elastomer mixtures was investigated. In the prepared mixtures, the curing parameters of mixtures that did not contain resin and mixtures containing resin in different proportions were examined. When examining the curing parameters, it was observed that with increasing resin content, the pre-curing time (ts2) and optimum curing time (t90) increased and the curing rate decreased. Moving mold rheometer studies showed that as the amount of resin increased, cross-link formation reactions were delayed or negatively affected. Additionally, temperature scanning stress relaxation tester (TSSR) studies were conducted to evaluate the effect of the resin on the creep behavior, service temperature, and cross-link density of the prepared vulcanizants. TSSR studies were carried out in two stages: first after curing and then after removing the resin from the vulcasinates by soaking the test samples in toluene. TSSR data showed that resin amounts exceeding 5 phr, the creep behavior of poly(epichlorohydrin-co-ethylene oxide) based elastomers, clearly showed that it negatively affects the service temperature and cross-link density.

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Torsional structural behavior of composite rubber hose for offshore applications

Cited by 9 publications

References 24 publications

Determining the influence of an artificial defect on the mechanical properties of a flexible pipeline material during a rupture test

Determining the influence of an artificial defect on the mechanical properties of a flexible pipeline material during a rupture test

Effect of Winding Steel Wire on the Collapse Pressure of Submarine Hose

Investigation of Effect of Resin Content on the Stress Relaxation of poly (epichlorohydrin-co-ethylene oxide) based Elastomer

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