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FETI-DP method with interface reduction for numerical simulations of periodic structures under thermal loading
1 : Laboratoire de Mécanique Gabriel Lamé
(LaMé)
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Site web
INSA Centre Val de Loire
Université d'Orléans, Polytech Orléans, 8, rue Léonard de Vinci, 45072 Orléans Cedex 2 ; INSA Centre Val de Loire, 88, boulevard Lahitolle, 18020 Bourges ; Université de Tours, Polytech Tours, 7 avenue Marcel Dassault, 37200 Tours -
France
2 : STMicroelectronics
* : Auteur correspondant
STMicroelectronics Tours, ST Microelectronics (TOURS)
This paper investigates the static analysis of plate-like periodic structures under thermal loading. Notably, this analysis targets the deformation of industrial wafers, where complex periodic patterns are usually involved. To alleviate the computational burden and memory storage issues associated with a direct finite element analysis, the FETI-DP domain decomposition method is considered in this paper. Subsequent speedups can be obtained by reducing the number of Lagrange multipliers at the substructure interfaces. Numerical experiments are carried out on a silicon plate with 400 substructures.
