Product: Abaqus/Standard
A material's magnetic permeability:
must be defined for “Time-harmonic eddy current analysis,” Section 6.7.5;
can only be linear;
can be isotropic, orthotropic, or fully anisotropic; and
can be specified as a function of frequency, temperature, and/or field variables.
Isotropic, orthotropic, or fully anisotropic magnetic permeability can be defined. For non-isotropic magnetic permeability a local orientation for the material directions must be specified (“Orientations,” Section 2.2.5).
For isotropic magnetic permeability only one value of magnetic permeability is needed at each temperature and field variable value. Isotropic magnetic permeability is the default.
| Input File Usage: | *MAGNETIC PERMEABILITY, TYPE=ISOTROPIC |
For orthotropic magnetic permeability three values of magnetic permeability (
, 
, 
) are needed at each temperature and field variable value.
| Input File Usage: | *MAGNETIC PERMEABILITY, TYPE=ORTHOTROPIC |
For fully anisotropic magnetic permeability six values (, 
, 
, 
, 
, ) are needed at each temperature and field variable value.
| Input File Usage: | *MAGNETIC PERMEABILITY, TYPE=ANISOTROPIC |
Magnetic permeability can be defined as a function of frequency.
| Input File Usage: | *MAGNETIC PERMEABILITY, FREQUENCY |
Magnetic permeability is active only in electromagnetic elements (see “Choosing the appropriate element for an analysis type,” Section 26.1.3).