9.7.4. Material
All elements have an associated property of the appropriate material type.
Isotropic Materials:
Has the same quality on direction
Is used universally
Orthotropic Materials:
Has different quality about two orthogonal directions of shell plane
Is used to paper, film etc.
Anisotropic Materials:
User-defined 3x3 matrix is used for constitutive equation
Is used to materials which have different properties in different directions.
Hyperelastic Materials:
Rubber or rubber-like materials
Initially isotropic
Nonlinear
Uses a large strain measure
All strain energy is recoverable
Plastic Materials:
J2 (von Mises) plasticity material formulation
Rate independent plasticity
Appropriate for metal plasticity
The outline diagram of material is as fallowing figure.
Figure 9.56 Diagram of material of FFlex body
Supported Material type
Some kinds of material types are supported for Shell/Solid element. Refer to Table 9.8.
Element Type |
Elastic |
Hyperelastic |
Rubber |
Plastic |
|
|---|---|---|---|---|---|
1D element |
Beam 2 |
O |
X |
X |
X |
2D element |
Shell 3 |
O |
X |
X |
X |
Shell 4 |
O |
X |
X |
O |
|
Shell 9 |
O |
X |
X |
X |
|
3D element |
Solid 4 |
O |
O |
O |
O |
Solid 5 |
O |
O |
O |
O |
|
Solid 6 |
O |
O |
O |
O |
|
Solid 8 |
O |
O |
O |
O |
|
Solid 10 |
O |
X |
X |
X |
|
Solid 26 |
O |
X |
X |
X |
|