A Discontinuous Galerkin Method for Multiphysics Welding Simulations

Jean Sébastien Cagnone; Koen Hillewaert; Nicolas Poletz

doi:10.4028/www.scientific.net/KEM.611-612.1319

Paper Titles

On the Flow Stress Model Selection for Finite Element Simulations of Machining of Ti6Al4V
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Methods to Decrease Cut Edge Sensitivity of High Strength Steels
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Weak Formulations with Upwind Shift for Calculation of Free Surface Corrections and Simulation of Steady-State Forming Problems
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A Discontinuous Galerkin Method for Multiphysics Welding Simulations
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Online Prediction of Machining Distortion of Aeronautical Parts Caused by Re-Equilibration of Residual Stresses
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Fast Plastic Integration Algorithms for Forming Process Simulations
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Modelling of Inertia Friction Welding Using Finite Element Analysis and Computational Fluid Dynamics
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 611-612A Discontinuous Galerkin Method for Multiphysics...

A Discontinuous Galerkin Method for Multiphysics Welding Simulations

Abstract:

This paper describes the development of a multiphysics welding simulation model based on the discontinuous Galerkin (DG) finite-element method. Our numerical model implements a classical enthalpy-porosity constitutive law accounting for hydrodynamic and thermal effects occurring during the phase transition from solid to liquid metal. The objective of the study is to present the verification of our numerical framework and explore the applicability of the DG formulation to the simulation of welding processes. Three computational examples of increasing complexity are presented.

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Periodical:

Key Engineering Materials (Volumes 611-612)

Pages:

1319-1326

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.611-612.1319

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Online since:

May 2014

Authors:

Jean Sébastien Cagnone*, Koen Hillewaert, Nicolas Poletz

Keywords:

Buoyancy, Discontinuous Galerkin Method, Enthalpy-Porosity Formulation, Interior Penalty Method, Marangoni Stresses, Solidification/Melting, Welding

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