Numerical simulation of welding and quenching processes using transient thermal and thermo-elasto-plastic formulations

Murthy, Y. V. L. N.; Rao, G. Venkata; Iyer, P. Krishna

doi:10.1016/0045-7949(95)00359-2

Cited by 58 publications

(14 citation statements)

References 34 publications

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“…The quadratic nature of the temperature distribution is motivated by findings of previous works that point to parabolic through-thethickness stress distributions [11][12][13]. Assuming a linear relation between stresses and temperature increment the parabolic temperature distribution is thereby justified.…”

Section: Introductionmentioning

confidence: 91%

A 2D finite element with through the thickness parabolic temperature distribution for heat transfer simulations including welding

Carmo

Faria

2015

Finite Elements in Analysis and Design

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Section: Introductionmentioning

confidence: 91%

A 2D finite element with through the thickness parabolic temperature distribution for heat transfer simulations including welding

Carmo

Faria

2015

Finite Elements in Analysis and Design

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“…The current techniques used to reduce the residual deformations and optimize the cooling rate include boiling water, spray and polyalkylene glycol quenching [5,70]. One of the major difficulties in the simulation of quenching processes is associated with the determination of the heat transfer coefficients through the surface of the solid because its evolution goes through several distinct boiling regimes [71][72][73][74][75][76][77]. The heat transfer coefficients also depend on the turbulence, pressure and temperature of the quenching fluid and on the orientation of the surface of the part [1].…”

Section: Quenching Of An Aluminium Impellermentioning

confidence: 99%

Modelling and numerical analysis of heat treatments on aluminium parts

Andrade‐Campos

Silva

Teixeira-Dias

2006

Numerical Meth Engineering

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SUMMARYA theoretical model suitable for the modelling and analysis of heat treatment problems is described. The presented formulations are implemented incrementally with a non-linear rate-dependent constitutive model, adequate to the simulation of a wide range temperature processes. The large deformation model is based on the additive decomposition of the strain rate tensor in elastic, thermal and viscoplastic parts. The flow rule is a function of the equivalent stress and the deviatoric stress tensor of the temperature field and of a set of internal state variables. The thermal problem is solved by a prediction/correction algorithm. The prediction, which uses a semi-implicit integration, provides a first estimation of the temperature field. The correction stage, performed with a Newton-Raphson implicit scheme, improves the solution until a satisfactory result is found. The thermomechanical coupled problem is solved with a staggered approach. The finite element formulations for coupled analysis of deformation and heat transfer given in this article are validated and applied to the process of quenching of aluminium parts into boiling water.

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“…The results from the different models [6][7][8][9] were consistent and agreed well with measurements except for the residual hoop stress at the surface of the weld. Murty et al [12] obtained the wanted tensile residual hoop stress in the weld. Dike et al [13] performed a three-dimensional single-pass welding simulation of a steel pipe.…”

Section: Introductionmentioning

confidence: 98%

Comparison of an axisymmetric and a three-dimensional model for welding and stress relief heat treatment

Alberg¹,

Berglund²

2004

AIP Conference Proceedings

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This work is part of a project dedicated to find accurate and reliable tools for prediction of welding and post weld heat treatment. In other parts of the project, a simulation method for combined welding and heat treatment simulations of the component was developed and different plastic/viscoplastic material models have been compared, these models included effects of phase changes. These simulations were made using an axisymmetric finite element model. The current paper presents welding and heat treatment simulations of the same aerospace component but now using a three-dimensional shell model. The results are compared with the previously used axisymmetric model. The simulations revealed that the two first welds have the greatest influents on a 'key dimension'. From the simulation, it can be concluded that the three-dimensional model give better prediction of the dimension based on measurement performed but not presented here.

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Numerical simulation of welding and quenching processes using transient thermal and thermo-elasto-plastic formulations

Cited by 58 publications

References 34 publications

A 2D finite element with through the thickness parabolic temperature distribution for heat transfer simulations including welding

A 2D finite element with through the thickness parabolic temperature distribution for heat transfer simulations including welding

Modelling and numerical analysis of heat treatments on aluminium parts

Comparison of an axisymmetric and a three-dimensional model for welding and stress relief heat treatment

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