Modelling of residual stresses developed in steel cylinders subjected to surface-layer deposition by welding

Сенченков, И. К.; Zhuk, Ya. A.; Chervinko, O. P.; Turyk, E.

doi:10.1007/s10665-007-9209-8

Cited by 7 publications

(4 citation statements)

References 15 publications

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“…Likewise, in their results, the temperature field behaviour directly affect the residual stresses, though the thermal stresses, and indirectly as well, cause the thermal stresses come together with phase and microstructure changes. Senchenkov et al [3] developed a FEM model for study the residual stress, distortions and microstructure on the weld of steel cylinders; they were obtained numerical results that had a good correlation with experimental results. However, these authors conclude that when the weld have subsequent welds, the numerical results of model shows a small discrepancy in the microstructure phase.…”

Section: Thermo-mechanic and Microstructural Analysis Of An Underwatementioning

confidence: 99%

Thermo-mechanic and Microstructural Analysis of an Underwater Welding Joint

Gutiérrez¹,

Rodriguez

Mondragon³

et al. 2016

Soldag. insp.

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Abstract:The aim of this research is to present a comparative analysis between theoretical and experimental thermal fields as well as a microstructural behaviour and residual stresses applying multiple weld beads in the joint of two API 5L X52 pipe sections. The thermal field, microstructural and residual stresses were numerically modelled through the finite element method (FEM) and compared to experimentally. The simulation conditions used in the FEM analysis were similar considerations to the underwater welding conditions. The finite element analysis was carried out, first by a non-linear transient thermal analysis for obtaining the global temperature history generated during the underwater welding process. Subsequently, a microstructural behaviour was determined using the temperatures distribution obtained in the pipe material by calculating the structural transformations of the material during the welding process, and finally a stress analysis was developed using the temperatures obtained from the thermal analysis. It was found that this simulation method can be used efficiently to determinate with accuracy the optimum welding parameters of this kind of weld applications.Key-words: API 5L X52; Finite element analysis; Residual stresses; Temperature field; Underwater welding. Análise Termo-mecânica e Microestrutural da União Soldada Durante Soldagem SubaquáticaResumo: O objetivo deste trabalho é apresentar uma análise comparativa entre os campos térmicos teóricos e experimentais, bem como um comportamento microestrutural e as tensões residuais aplicando cordões em solda multipasses na união de duas seções de tubo API 5L X52. O campo térmico, as microestruturas e as tensões residuais foram numericamente modelados através do método por elementos finitos e comparados com o experimental. As condições de simulação utilizadas na análise por elementos finitos foram consideradas semelhantes às condições de soldagem subaquáticas. A análise por elementos finitos foi efetuada, primeiramente uma análise térmica transiente não linear para obter a evolução da temperatura global gerada durante a soldagem subaquática. Depois, um comportamento microestrutural foi determinado usando a distribuição de temperaturas obtida no material do tubo calculando as transformações estruturais do material no processo, e, finalmente, uma análise de tensões foi desenvolvida utilizando as temperaturas obtidas a partir da análise térmica. Foi encontrado que este método pode ser utilizado eficientemente para determinar com precisão os parâmetros de soldagem ótimos neste tipo de soldagem por simulação.Palavras-chave: API 5L X52; Análise de elementos finitos; Tensões residuais; Campo de temperatura; Soldagem subaquática.

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Section: Thermo-mechanic and Microstructural Analysis Of An Underwatementioning

confidence: 99%

Thermo-mechanic and Microstructural Analysis of an Underwater Welding Joint

Gutiérrez¹,

Rodriguez

Mondragon³

et al. 2016

Soldag. insp.

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“…The increment of martensite phase in the RMT A-M is also determined by law (19), but the temperature of the end of transformation is identical for all cooling trajectories θ e = 100°С, and the final concentration of martensite phase C me is equal to the quantity of austenite remaining after the passage of other RMT:…”

Section: Figmentioning

confidence: 99%

“…Microstructural transformations, accompanying the processes of fast heating and subsequent cooling of the material, represent an additional complicating factor, which can affect substantially the residual SSS [16,17,19]. This feature can be explained by the fact that, for example, martensite has the greatest specific volume as compared with other microstructures, and austenite has the smallest [7,13].…”

Section: Introductionmentioning

confidence: 99%

Influence of microstructural transformations on the stress-strain state of a locally irradiated steel disk

Zhuk¹,

Сенченков²,

Vasyl’eva³

2012

J Math Sci

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Within the framework of the dynamic statement of the coupled problem of thermomechanics, we investigate the stress-strain state of a disk, caused by the action of a laser pulse or an electron beam, with regard for microstructural transformations, which accompany the heating and subsequent cooling of the material. The solution of axially symmetric problem is carried out numerically using the thermodynamically consistent theory of inelastic behavior of the material and finite element technique and taking into account the temperature dependence of physical and mechanical properties of the material. We also study the influence of microstructural transformations on the dynamic and quasistatic response of the material as well as on the residual stress-strain state in the irradiation zone.

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“…Additional possibilities for property-oriented management are accessible if mechanical and other properties depend on the microstructure of material, which often is a result of specific thermal treatments [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Viscoplastic microstructural processes in solids under impulsive thermal loading

2011

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The stress-strain state of a disk caused by a thermal pulse is investigated within the framework of a dynamic coupled thermomechanics problem accounting for microstructural phase transformations caused by the heating and subsequent cooling of the material. The solution of the axisymmetric problem is obtained numerically from a thermodynamically consistent theory for the inelastic behavior of the material which takes into account the thermal dependencies of the material properties using the finite element method. The influence of the microstructural transformations on the dynamic and quasistatic response of the material as well as the residual stress-strain state within the irradiated zone are also studied in detail.

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Modelling of residual stresses developed in steel cylinders subjected to surface-layer deposition by welding

Cited by 7 publications

References 15 publications

Thermo-mechanic and Microstructural Analysis of an Underwater Welding Joint

Thermo-mechanic and Microstructural Analysis of an Underwater Welding Joint

Influence of microstructural transformations on the stress-strain state of a locally irradiated steel disk

Viscoplastic microstructural processes in solids under impulsive thermal loading

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