Finite-element modelling of magnetic material degradation due to punching

Madeleine Sophia Joela Bali, Herbert De Gersem, Annette Mütze

Research output: Contribution to journalArticlepeer-review


Aiming to better understand and model the different loss mechanisms occurring within electric machines during operation, we present a method to consider the degradation of steel during manufacturing due to punching in finite-element modeling of electric machines. The approach introduces a certain number of boundary layers along the punched edges, with the relative permeability decreasing toward the edge. The method, its implementation, and two example applications are presented and supported with experimental results.
Original languageEnglish
Pages (from-to)745-748
JournalIEEE Transactions on Magnetics
Issue number2
Publication statusPublished - 2014

Fields of Expertise

  • Sustainable Systems

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