Material: definition (structure)

Definition

The Material entity is defined by:

a name
a type for following physical properties:
- magnetic property B(H) and B(H,T)
- electric property J(E) and J(E,T)
- dielectric property D(E)
- thermal conductivity k(T)
- specific heat ρC_P(T)

specific characteristics belonging to a type

Name

The name to identify the material is set by the user during the creation of this one.

A comment (optional) can be added to the name.

Provided types (models)

Various types (models), provided for the physical properties, are presented in chapter Materials: principles. Brief lists of models are presented in the following blocks. For detailed lists, see:

Outline of the models (1)

An outline of the models for various electromagnetic properties B(H), J(E), D(E) is given in the table below:

	B(H)		J(E)	D(E)
	Soft material	Hard material
Linear	Linear	Linear	Constant resistivity	Linear
Linear complex	Linear complex			Linear with losses
Nonlinear	Saturation: analytic analytic + knee spline Rayleigh	Magnetization: analytic analytic + knee spline	Superconductivity
Hysteresis	Jiles-Atherton

Outline of the models (2)

An outline of the models for various thermal properties k(T), ρC_P(T) is given in the table below:

k(T)	ρC_P(T)
Constant	Constant
Linear function of T	Linear function of T
Exponential function of T	Exponential function of T
	Gaussian of T + constant
	Gaussian of T + exponential

Outline of the models (3)

An outline of the models for various electromagnetic properties depending on the temperature B(H,T), J(E,T), D(E,T) is given in the table below:

	B(H,T)		J(E,T)	D(E,T)
	Soft material	Hard material
Linear	Linear	No models provided	Constant resistivity	No models provided
Linear complex	-		-
Nonlinear	Saturation analytic analytic + knee		-

	Exponential function of T		Linear function of T Exponential function of T