Speeding up mesoscale thermal simulations of powder bed additive manufacturing thanks to the forward Euler time-integration scheme: A critical assessment
Langue
EN
Article de revue
Ce document a été publié dans
Finite Elements in Analysis and Design. 2022-08, vol. 211
Résumé en anglais
This work addresses the mesoscale conduction-based modelling of Powder Bed Fusion for metallic materials. The forward Euler (explicit) time integration strategy is thoroughly benchmarked for the first time in a Powder Bed ...Lire la suite >
This work addresses the mesoscale conduction-based modelling of Powder Bed Fusion for metallic materials. The forward Euler (explicit) time integration strategy is thoroughly benchmarked for the first time in a Powder Bed Fusion simulation. We also compare the computational times of explicit and implicit schemes when applied to an experimentally validated Powder Bed Fusion simulation. We demonstrate that the use of the former scheme results in considerable speedups (20 to 100) without noticeable loss of accuracy. We furthermore propose a Powder Bed Fusion-dedicated procedure to estimate the maximum allowable time step size of the explicit scheme.< Réduire
Mots clés en anglais
Mesocale powder bed fusion modelling
Electron beam melting Selective laser melting
Laser beam melting
Forward Euler
Explicit scheme
Finite elements
Project ANR
Maîtrise géométrique des pièces produites par fabrication additive métallique - ANR-17-CE10-0004