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Constitutive modelling of sheet‐layered lamination stacks
Author(s) -
Baloglu Maximilian Volkan,
Willner Kai
Publication year - 2018
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201800162
Subject(s) - lamination , homogenization (climate) , constitutive equation , stator , materials science , isotropy , microstructure , composite material , mechanics , structural engineering , mechanical engineering , engineering , physics , finite element method , optics , biodiversity , ecology , layer (electronics) , biology
Sheet‐layered lamination stacks found in electric motors as rotor and stator are a challenging task in structural mechanics due to their special design. The manufacturing process determines the nature of the microstructure resulting in the presence of bonding varnish or frictional contact between the individual metal sheets. For the latter case, a penalty method in normal and tangential direction can be used to capture the contact interactions of single plates. In combination with homogenization techniques, a transversely isotropic surrogate material model with a corresponding strain energy density can be identified. In this paper, the focus lies on the influence of the penalty parameters on the elastic quantities of the constitutive equation.