Automatic mesh generator for complex 2D domains - application to moving geometries in forming processes

Głut, Barbara; Coupez, Thierry; Chenot, Jean‐Loup

doi:10.1016/0924-0136(92)90091-6

Cited by 6 publications

(2 citation statements)

References 4 publications

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“…For different work-pieces a thermo-mechanical simulation (including metallurgical evolution) is performed with the FORGE2 code [5]. The whole forging route (from heating to quenching) is described by the simulation.…”

Section: 2-validation Of Recrystallization On Forged Partsmentioning

confidence: 99%

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Recrystallization and Work-Hardening Prediction During Forging Process of Inconel 718

Marty¹,

Guedou²,

Gergaud³

et al. 1997

Superalloys 718, 625, 706 and Various Derivatives (1997)

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The numerical simulation of forging process allows to know the temperature and strain evolution in every point of the part. The metallurgical models are able to account of these evolutions in order to predict the grain size everywhere in the work piece. The aim of the present study is to predict the recrystallized fraction in various processes (hot die forging, ring rolling, or hammering). The recrystallized fraction is strongly dependent on the stored energy (work-hardening or dislocation density) contained in the material. As a matter of fact a predictive recrystallized fraction model based on dislocation density is developed. It predicts successfully the recrystallized fraction on small samples and parts. The dislocation density is connected with the broadening of (400) X-ray line profile. The line profile broadening measurement is related to the conventional 0.2% yield stress. The correlation between predicted and measured work-hardening will be done in a following work, which will enable to link the microstructure to mechanical properties and then to predict the yield stress within a numerical simulation of the forging process.

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Section: 2-validation Of Recrystallization On Forged Partsmentioning

confidence: 99%

“…This is due to the corresponding step of recrystallized structure dislocation density. The recrystallized fraction is implemented with time, temperature and strain rate according to equation (5). The parameter A is equal to Al in the case of dynamic and A2 in the case of metadynamic recrystallization.…”

Section: 2-recrystallization Modellingmentioning

confidence: 99%

Recrystallization and Work-Hardening Prediction During Forging Process of Inconel 718

Marty¹,

Guedou²,

Gergaud³

et al. 1997

Superalloys 718, 625, 706 and Various Derivatives (1997)

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An arbitrary Lagrangian-Eulerian finite element approach to non-steady state turbulent fluid flow with application to mould filling in casting

Gaston

Kamara

Bellet

2000

Int. J. Numer. Meth. Fluids

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This paper presents a two‐dimensional Lagrangian–Eulerian finite element approach of non‐steady state turbulent fluid flows with free surfaces. The proposed model is based on a velocity–pressure finite element Navier–Stokes solver, including an augmented Lagrangian technique and an iterative resolution of Uzawa type. Turbulent effects are taken into account with the k–ε two‐equation statistical model. Mesh updating is carried out through an arbitrary Lagrangian–Eulerian (ALE) method in order to describe properly the free surface evolution. Three comparisons between experimental and numerical results illustrate the efficiency of the method. The first one is turbulent flow in an academic geometry, the second one is a mould filling in effective casting conditions and the third one is a precise confrontation to a water model. Copyright © 2000 John Wiley & Sons, Ltd.

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Mesh generation and refinement for FEM and BEM— A bibliography (1990–1993)

Mackerle

1993

Finite Elements in Analysis and Design

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Automatic mesh generator for complex 2D domains - application to moving geometries in forming processes

Cited by 6 publications

References 4 publications

Recrystallization and Work-Hardening Prediction During Forging Process of Inconel 718

Recrystallization and Work-Hardening Prediction During Forging Process of Inconel 718

An arbitrary Lagrangian-Eulerian finite element approach to non-steady state turbulent fluid flow with application to mould filling in casting

Mesh generation and refinement for FEM and BEM— A bibliography (1990–1993)

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