A novel mixed Eulerian–Lagrangian finite-element method for steady-state hot rolling processes

Synka, Josef; Kainz, Alexander

doi:10.1016/j.ijmecsci.2003.12.008

Cited by 19 publications

(10 citation statements)

References 12 publications

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“…For example, Weroński et al [16] worked on drop forging of a piston using slipline fields and FEM. Likewise, Mori et al, [17] used finite element method in simulating rigid-plastic planestrain rolling and Synka and Kainz, [18] used a novel mixed Eulerian-Lagrangian finite-element method for steady-state hot rolling processes.…”

Section: The Finite Element Methodsmentioning

confidence: 99%

Slip Line Field Solution for Second Pass in Lubricated 4-High Reversing Cold Rolling Sheet Mill

Oluwole¹,

Olaogun²

2011

ENG

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The development of a possible slip line field (slf) for theoretical calculations of the deforming pressure (load) in a second pass of a lubricated cold rolling sheet mill and validation using values from an aluminium sheet rolling mill was done in this work. This will be relevant in the manufacturing industries providing an easy method for determining necessary applied rolling load. Experimental rolling was carried out to observe the shear lines in the deformation field. Construction of possible slip line field model was developed adhering strictly to assumptions of rigid plastic model. Calculation of the deforming force/load was achieved using Hencky's equation. Results showed that the load calculations for constructed slip line field using aluminium sheet rolling as an example tallied with values obtained from Tower Aluminium rolling mill. Slip line fields constructed for the second pass described adequately the rolling pressure in the cold rolling process, giving a valid solution of the exact load estimates on comparison with the industrial load values. Roll pressure along the arc of contact rose fairly linearly from the entrance to a maximum at the exit point. This work showed that slf for the first pass in a cold rolling mill cannot be used for subsequent passes; it requires construction of slfs for each pass in the cold rolling process.

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Section: The Finite Element Methodsmentioning

confidence: 99%

Slip Line Field Solution for Second Pass in Lubricated 4-High Reversing Cold Rolling Sheet Mill

Oluwole¹,

Olaogun²

2011

ENG

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“…Where, the Eulerian coordinate system is used in the rolling direction while the Lagrangian method is used for modeling the material flow through the tire mesh. [22] This method replaces the velocity components in the Lagrangian direction with displacement, which leads to time elimination and having the displacement as an independent field variable.…”

Section: Numerical Analysis Approachmentioning

confidence: 99%

Finite Element Modeling of Tire Transient Characteristics in Dynamic Maneuvers

Taheri

Sandu

Taheri

2014

SAE Int. J. Passeng. Cars - Mech. Syst.

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Studying the kinetic and kinematics of the rim-tire combination is very important in full vehicle simulations, as well as for the tire design process. Tire maneuvers are either quasi-static, such as steady-state rolling, or dynamic, such as traction and braking. The rolling of the tire over obstacles and potholes and, more generally, over uneven roads are other examples of tire dynamic maneuvers. In the latter case, tire dynamic models are used for durability assessment of the vehicle chassis, and should be studied using high fidelity simulation models. In this study, a three-dimensional finite element model (FEM) has been developed using the commercial software package ABAQUS.The purpose of this study is to investigate the tire dynamic behavior in multiple case studies in which the transient characteristics are highly involved. The process of running dynamic FE tire simulations starts by statically inflating and loading the tire using an implicit method with refined mesh in the contact patch. Then, by using the result transfer option, final state vectors are used as initial conditions for subsequent simulations. Using this sequence of loading steps helps increase the efficiency of the code.The validation of the model is performed in two stages. First, tire mode shapes and associated natural frequencies and damping values are compared with the experimental data. Second, a series of transient dynamic simulations are performed using an explicit method with a fine mesh around the circumference of the tire. Finally, the FEM model results are filtered to eliminate the numerical noise, and their correlation with the test data is investigated. Moreover, the effect of the normal load on spindle forces features such as peak values and time shifts are studied. The results show that the tire dynamic response is autonomous.

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“…[4,5,7,[9][10][11][12]), the high demands from customers concerning productivity and product quality are the reason, why it is of utmost importance to attain a better understanding of the underlying process details by utilizing highly sophisticated formalisms and optimized numerical simulation concepts. For optimization and control the development of highly sophisticated mathematical offline and online models is a vital precondition for manufacturing high quality products satisfying even the most challenging tolerance demands.…”

Section: Introductionmentioning

confidence: 99%

Elasto-Plastic Simulation Concepts For Profile Transfer And Flatness Prediction In Flat Hot Rolling

Kainz¹,

Parteder²,

Widder³

et al. 2007

AIP Conference Proceedings

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For the prediction of the material flow behavior of wide strips in hot and cold rolling, highly sophisticated procedures are essential, which are able to couple the deformation of the strip and the elastic response of the rolls. Especially for thin, wide strips, where the aspect ratio width over thickness is extremely unfavorable for standard FEMcalculations, the determination of profile transfer and flatness obviously leads to extremely high calculation times with commercial FEM-programs. Therefore, a tailor-made FEM-code for the efficient simulation of the elasto-plastic material flow inside the roll gap has been developed. The underlying formalism for the strip-routines is based on pseudo-steadystate streamline-update techniques for the stress-field, coupled iteratively with the principle of virtual power for the determination of the velocity field and the contact stress distribution between strip and work roll. Coupling of the strip models with the routines for elastic roll stack deflection is a precondition to get reliable results concerning profile transfer and residual stresses inside the strip, which allows the prediction of flatness defects, such as buckling. Of particular interest is the dependence of the longitudinal stress distributions and of the corresponding specific rolling force-distribution across the strip width on the underlying constitutive elasto-viscoplastic laws including ratedependence, work hardening, softening and creep effects.

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A novel mixed Eulerian–Lagrangian finite-element method for steady-state hot rolling processes

Cited by 19 publications

References 12 publications

Slip Line Field Solution for Second Pass in Lubricated 4-High Reversing Cold Rolling Sheet Mill

Slip Line Field Solution for Second Pass in Lubricated 4-High Reversing Cold Rolling Sheet Mill

Finite Element Modeling of Tire Transient Characteristics in Dynamic Maneuvers

Elasto-Plastic Simulation Concepts For Profile Transfer And Flatness Prediction In Flat Hot Rolling

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