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 ρCP(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:
- B(H) law: models for soft magnetic materials
- B(H) and B(H,T) law: models for hard magnetic materials
- B(H, T) law: models for soft magnetic materials
- J(E) law: models
- J(E, T) law: models
- J(E, B, T) law: models for superconductors
- D(E) law: models
- k(T) law: models
- RhoCp(T) law: models
- Spatial model / user model
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 |
|
Magnetization:
|
Superconductivity | |
Hysteresis |
|
Outline of the models (2)
An outline of the models for various thermal properties k(T), ρCP(T) is given in the table below:
k(T) | ρCP(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
|
- | ||
|
|