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 1  Diagram of material of FFlex body

 

Figure 2  Material icon of the FFlex Edit group in the FFlex Edit tab

 

Step to create an FE material

1.  Click the Material icon of the FFlex Edit group in the FFlex Edit tab.

2.  The dialog box for the material list appears.

 

Figure 3  Material dialog box

 

3.  Click Add.

4.  Click  and then select the material type.

5.  Click  of the newly created line.

 

Supported Material type

Some kinds of material types are supported for Shell/Solid element. Refer to Table 1.

 

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

Table 1  Supported material type.