The Laminated Core node is used to model an anisotropic effective material for laminated soft magnetic cores that is not developing induced currents. The Magnetization model can be set to B-H Curve (default), Effective B-H Curve, and Relative Permeability, which all have the same settings as described in the Ampère’s Law node of the Magnetic Fields interface. The Lamination model setting is used to choose between Homogeneous (default), Out-of-plane (available in 2D only), and Direction based types of lamination. The first is used to describe uniform material cores, as described in the Magnetic Flux Conservation node in the Magnetic Fields, No Currents interface. The latter are used to reproduce the homogenized effect of a stack of soft iron laminates and insulation spacers along a direction of lamination, based upon the Energy- and Coenergy-Based Magnetic Constitutive Relations. The direction of lamination and the stacking factor (the volumetric ratio between the laminates and the total stack) can be set. These two quantities are used to evaluate the effective magnetic energy density of the stack and the corresponding effective magnetic field.

It is also possible to specify the Loss Model. When enabled, it allows to define the Volumetric loss density (SI unit: W/m3) and can be specified as User Defined, or, if B-H Curve is chosen, by using empirical loss formulas via Steinmetz or Bertotti coefficients. More information on loss models can be found in the Loss Calculation node documentation. In the The Rotating Machinery, Magnetic Interface, this feature is called Laminated Core, Magnetic Flux Conservation.