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Grill, Wolfgang; Grämlich, Ludwig; Eller, Roland

doi:10.1007/978-3-322-83496-6_11

Cited by 2 publications

(2 citation statements)

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“…In previous similar studies different cracking criteria were adopted. Grill et al [25] considered a fixed value of 2 x 10 5 Pa for the steel's ultimate tensile strength at high temperatures and used this value as a crack criterion. Sorimachi and Brimacombe [26] discussed possible cracking criteria and proposed a cracking criterion based on a fixed strain-to-fracture of 0.2 for low carbon steels at high temperatures (viz.…”

Section: Computed Results and Discussionmentioning

confidence: 99%

Thermal modelling and stress analysis in the continuous casting of arbitrary sections

Aboutalebi¹,

Hasan²,

Guthrie

1994

Steel Research

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A three-dimensional parabolic heat conduction model has been developed to analyze heat transfer and solidification in variously shaped continuous casters. A fixed grid source based enthalpy method was used to model solidification during a casting process. In order to correctly model arbitrary cross-sectional shaped castings, a body-fitted coordinate transformation (BFT) technique was employed to transform the physical space on to a rectangular computational domain. The transformed governing equations and boundary conditions were solved in the transformed plane. Two arbitrarily shaped casters, having dog-bone, and hexagonal cross-sections, were tested in this study. The governing equations were discretized using the control-volume finite difference approach, wherein an implicit solution technique was employed to solve the set of discretized algebraic equations. From the temperature field predicted by heat flow model, a quasi-non-linear stress analysis was carried out within the solidifying shell of the beam blank (dog bone) section. The effect of roller arrangement on the distortion of solidified shell was investigated. Thermisches Modell und Spannungsanalyse fiir das StranggieBen in unterschiedlichen Anlagenbautormen. Ein 3-dimensionales parabolisches Warmeleitungsmodell wurde entwickelt, um Warmeiibergang und Erstarrung in StranggieBanlagen verschiedener Bauformen analysieren zu ki:innen. Die Modellierung der Erstarrung wahrend des StranggieBens geschah mil der Enthalpie-Methode auf Basis eines festen Gitterursprungs. Um eine korrekte Modellierung willkOrlicher Querschnittsformen sicherzustellen, bediente man sich bei der Umwandlung des physikalischen Raums in einen rechteckigen Rechenbereich einer ki:irpergerechten Koordinatentransformationsmethode. Transformierte Gleichungen und Randbedingungen wurden in der transformierten Ebene geli:ist. Zwei Anlagen verschiedener Bauform (Hundeknochenprofil und hexagonaler Querschnitt) wurden im Rahmen dieser Studie getestet. Mit der vom WarmefluBmodell vorausbestimmten Temperatur wurde eine quasi-nichtlineare Spannungsanalyse innerhalb der erstarrenden Strangschale eines Tragervorprofils (Hundeknochenprofil) durchgefOhrt. Auch der EinfluB der Rollenanordnung auf den Verzug der erstarrten Strangschale war Gegenstand der Untersuchung.

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Section: Computed Results and Discussionmentioning

confidence: 99%

Thermal modelling and stress analysis in the continuous casting of arbitrary sections

Aboutalebi¹,

Hasan²,

Guthrie

1994

Steel Research

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“…Cui 5 and Chen 6 analyzed the effect of soft reduction on side bulging deformation. With regard to the calculation method, Grill 7 and Bellet 8 built finite element models of the two‐dimensional deformation of slab, respectively, and Barber 9 studied the deformation of the slab shell with elastic deformation and the creep mechanism. Okamura 10 analyzed the deformation of the slab in the secondary cooling zone with a finite element model.…”

Section: Introductionmentioning

confidence: 99%

Effect of Casting Speed on Slab Broadening in Continuous Casting

Hwang

et al. 2011

steel research int.

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A three‐dimensional viscoelastic‐plastic thermal‐mechanical coupled finite element model was based on the basis of the secondary development of commercial software (MSC, Marc software, USA) to simulation the effect of casting speed on slab broadening in the secondary cooling zone. The results show that the ratio of ultimate broadening increased with increasing casting speed for various steel grades, but the change in broadening lagged that in casting speed. When the casting speeds were 1.0 m/min, 1.1 m/min, and 1.2 m/min for Q235 steel, the maximum ratios of ultimate broadening were 1.52%, 1.59%, and 1.81%, respectively, and the average ratios of ultimate broadening at the exit of the caster were 1.00%, 1.27%, and 1.48%, respectively; for SPHC steel, the maximum ratios of ultimate broadening were 1.34%, 1.44%, and 1.69%, respectively, and the average ratios of ultimate broadening at the exit of the caster were 0.64%, 0.76%, and 0.95%, respectively. The simulation results were verified by measurements on an SMS‐Demag continuous caster of Maanshan Iron and Steel Co. Ltd.; the measurement results agree with the simulation results. The mechanism of the effect of casting speed on slab broadening was also analyzed.

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Cited by 2 publications

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Thermal modelling and stress analysis in the continuous casting of arbitrary sections

Thermal modelling and stress analysis in the continuous casting of arbitrary sections

Effect of Casting Speed on Slab Broadening in Continuous Casting

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