Effect of Finite Element Mesh Size and Time-Increment on Predicting Part-Scale Temperature for Powder Bed Fusion Process

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference article in proceedingsScientificvertaisarvioitu

1 Sitaatiot (Scopus)
88 Lataukset (Pure)

Abstrakti

Simulating powder bed fusion processes (PBF) can reveal temperature evolution in transient mode. Accurate temperature prediction using finite element (FE) method demands both mesh and time increments to be very small; thus, requiring a high computational cost. To avoid this, in part-scale simulation, coarse meshes representing multiple powder layers added at once, are usually used which results in fast solving of FE models. Powder layers and time increments are lumped in such a configuration, which results in a deviation of the temperature history. This research proposes a methodology to predict the nodal temperature (NT) due to the combined effect of space and time lumping for part-scale FE thermal simulation for PBF processes. It shows its effects in predicting both the local temperature history and the average far-field temperature.

AlkuperäiskieliEnglanti
OtsikkoAchievements and Trends in Material Forming- Peer-reviewed extended papers selected from the 25th International Conference on Material Forming, ESAFORM 2022
ToimittajatGabriela Vincze, Frédéric Barlat
KustantajaTrans Tech Publications
Sivut341-348
Sivumäärä8
ISBN (painettu)978-3-0357-1759-4
DOI - pysyväislinkit
TilaJulkaistu - 2022
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaInternational ESAFORM Conference on Material Forming - Braga, Portugali
Kesto: 27 huhtik. 202229 huhtik. 2022
Konferenssinumero: 25

Julkaisusarja

NimiKey Engineering Materials
Vuosikerta926
ISSN (painettu)1013-9826
ISSN (elektroninen)1662-9795

Conference

ConferenceInternational ESAFORM Conference on Material Forming
LyhennettäESAFORM
Maa/AluePortugali
KaupunkiBraga
Ajanjakso27/04/202229/04/2022

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