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Identification of the lamination stack's behavior simulated with a multi‐scale homogenization using a progressive contact formulation
Author(s) -
Luchscheider Vera,
Maidorn Mischa,
Willner Kai
Publication year - 2014
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201410114
Subject(s) - homogenization (climate) , stack (abstract data type) , lamination , surface finish , materials science , contact area , surface roughness , mechanics , composite material , computer science , physics , biodiversity , ecology , layer (electronics) , biology , programming language
The influence of the lamination stack on the mechanical behavior of an electrical motor is significant, especially for lightweight designs. Information about the stack's behavior is relevant for a proper calculation of the whole motor. This behavior is dependent on the contact between the single sheets resulting from the roughness and the behavior of the roughness peaks. The normal behavior is an elasto‐plastic and progressive one, which results mainly of the number of roughness peaks in contact. Whereas the tangential micro‐slip behavior is dependent on the single contacts and the friction coefficient. Both behaviors can be described by models and thus it is possible to calculate the behavior of a whole stack using an homogenization based on representative volume elements. (© 2014 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)