Material modelling of sheet-layered lamination stacks

Internally funded project

Project Details

Project leader:
Prof. Dr.-Ing. Kai Willner

Project members:
Maximilian Volkan Baloglu

Contributing FAU Organisations:
Professur für Strukturmechanik

Start date: 01/01/2015

Research Fields

Material Mechanics
Lehrstuhl für Technische Mechanik
Contact mechanics
Lehrstuhl für Technische Mechanik

Abstract (technical / expert description):

The numerical simulation of sheet-layered lamination stacks, which can be found in electric motors and transformers, is a challenging task in structural mechanics due to the layout of these components.  Depending on the manufacturing process, these sheets are either in frictional contact to each other or are linked together with the help of a bonding varnish. Especially the interlayer between individual sheets and their interaction have a strong influence on the structure and may be responsible for a nonlinear deformation behavior. In the context of performance and computational effort, it is desirable to avoid a full Finite-Element simulation incorporating every layer such that homogenization techniques are used in this project to derive a sophisticated surrogate material model, which takes the special micro-structure of these lamination stacks into account.


Baloglu, M.V., & Willner, K. (2018). Influence of the Constitutive Contact Law on the Anisotropic Material Parameters of Sheet-Layered Lamination Stacks. In IEEE (Eds.), 2018 8th International Electric Drives Production Conference (EDPC) (pp. 125-130). Schweinfurt.
Baloglu, M.V., & Willner, K. (2017). Determination of material parameters for a sheet‐layered lamination stack. Proceedings in Applied Mathematics and Mechanics, 17(1), 393-394.
Baloglu, M.V., & Willner, K. (2016). Material modelling of a sheet-layered lamination stack by homogenization. Proceedings in Applied Mathematics and Mechanics, 16(1), 509 - 510.
Baloglu, M.V., & Willner, K. (2016). Numerical homogenization and simulation of a lamination stack. In IEEE (Eds.), Proceedings of the Electric Drives Production Conference (EDPC), 2016 6th International (pp. 67-72). Nürnberg.

Last updated on 2018-22-11 at 16:47