Speeding up mesoscale thermal simulations of powder bed additive manufacturing thanks to the forward Euler time-integration scheme: A critical assessment
Language
EN
Article de revue
This item was published in
Finite Elements in Analysis and Design. 2022-08, vol. 211
English Abstract
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 ...Read more >
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.Read less <
English Keywords
Mesocale powder bed fusion modelling
Electron beam melting Selective laser melting
Laser beam melting
Forward Euler
Explicit scheme
Finite elements
ANR Project
Maîtrise géométrique des pièces produites par fabrication additive métallique - ANR-17-CE10-0004