Validation of Predicted Residual Stresses within Direct Chill Cast Magnesium Alloy Slab

Turski, Mark; Paradowska, Anna; Zhang, Shuyan; Mortensen, Dag; Fjær, Hallvard G.; Grandfield, John; Davis, Bruce; DeLorme, Rick

doi:10.1007/s11661-011-1077-1

Cited by 20 publications

(9 citation statements)

References 17 publications

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“…Fluid flow velocities and regimes were predicted using Alsim [24] a finite-element modelling (FEM) package optimized for semi-continuous direct chill casting considering heat transfer, fluid flow and mechanical stresses [25]. For this study the main elements of the model are the mould, cast distributor, cast material and dummy block.…”

Section: Flow Modellingmentioning

confidence: 99%

Characterisation and modelling of defect formation in direct-chill cast AZ80 alloy

Mackie

Robson

Withers

et al. 2015

Materials Characterization

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Section: Flow Modellingmentioning

confidence: 99%

Characterisation and modelling of defect formation in direct-chill cast AZ80 alloy

Mackie

Robson

Withers

et al. 2015

Materials Characterization

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“…The Coefficients of the polynomial fit for the material constants is given in the Table 2. Flow stresses predicted using these constants (equations (13)2( 16)) are re-plotted using equation (17),…”

Section: (A) and (B)mentioning

confidence: 99%

“…Predicted stresses were in good agreement with experimental measurements. 17 From the above discussion on earlier works, it is evident that both Garafalo and extended Ludwik models can be easily integrated into commercial FE solvers. This helps in modelling thermomechanical behaviour of large-scale industrial manufacturing processes for optimising process parameters.…”

Section: Introductionmentioning

confidence: 99%

Analysis of hot tensile behaviour and prediction of thermal stresses during processing of AZ31 magnesium alloy

Divya

Penumakala

Kalyan

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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The use of magnesium alloys is rapidly increasing in automotive and aerospace industries. Accurate constitutive modelling of material at high temperature is a key input for numerical simulation of manufacturing processes. In the present work, hot tensile deformation behaviour of AZ31 alloy was studied by performing uniaxial tensile tests in the temperature range of 250°C–450°C and strain rates ranging from 0.1 to 0.001 s−1. The flow stress behaviour of AZ31 alloy was modelled using two rate-dependent inelastic models, viz. Garafalo law and extended Ludwik law. Various constants in these models were predicted as a function of strain rate and temperature. These rate dependent laws were integrated using Finite Element (FE) based algorithms for thermo-mechanical simulation. Evolution of thermal stresses in solid state quenching and static casting of AZ31 alloys were studied. Results reveal that both material models accurately predict the evolution of thermal stresses for high temperature quenching and casting processes.

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“…Larger stress and strain values calculated near top of crystallizer. Turski et al [19] verified a finite element based model (ALSIM) by predicting the residual stress within direct chill cast large size slab.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Analysis of Direct Chill Casting using Concept of Element Birth and Death

Fegade*¹,

Tated²,

Nehete³

et al. 2019

IJRTE

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A direct chill (DC) casting is a continuous casting process widely used in different industries. The aim of the work is to investigate thermal and mechanical stress formed during the direct chill casting process by a numerical method. A commercial software ANSYS mechanical APDL is used for the simulation. A moving mesh technique is employed for the development of ingot during the solidification process. An element birth and death concept is used to find out the deformation in ingot. The verification of the results is done with the results found in literature and found a good agreement. The developed model has admirable ability to predict the thermal and mechanical stress formed in direct chill casting process.

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Validation of Predicted Residual Stresses within Direct Chill Cast Magnesium Alloy Slab

Cited by 20 publications

References 17 publications

Characterisation and modelling of defect formation in direct-chill cast AZ80 alloy

Characterisation and modelling of defect formation in direct-chill cast AZ80 alloy

Analysis of hot tensile behaviour and prediction of thermal stresses during processing of AZ31 magnesium alloy

Finite Element Analysis of Direct Chill Casting using Concept of Element Birth and Death

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