5. Keyword factor CONCEPT

5.1. Operand REPERE_LOCAL

If REPERE_LOCAL has the value “ELEM” or “ELNO”, the MODELE keyword is mandatory.

If REPERE_LOCAL has the value “ELEM”, the 3 vectors constituting the local coordinate system of each element are printed, so that they can be visualized using ParAvis.

If REPERE_LOCAL has the value “ELNO”, the 3 vectors constituting the local coordinate system for each element are recorded as a field at the nodes, so that they can then be used in the Paravis calculator in combination with other fields at the nodes. In this case no other information from the CARA_ELEM concept is saved in the file.

When REPERE_LOCAL =” ELNO “it is therefore possible to combine the local vectors with the components of the internal force fields. This makes it possible to visualize the force vectors in 3D, as well as to animate their evolution during the calculation moments. To perform this action, several basic operations must be performed in ParAvis:

• Open file MED containing the guides:

on REPE -> Filter « ELNO Points » -> Filter « Merge blocks »

• Open file MED containing the fields:

on EFGE_ELNO -> Filter « ELNO Points » -> Filter « Merge blocks »

• selecting the 2 « Merge Blocks » then « Append Attributes »

In « Calculator » you have access to the REPE vectors and the components of the fields.

The calculation of the force vector (N, Vy, Vz) is done in the following way:

\(\begin{array}{c}\mathit{Fint}\text{=}\\ \\ \end{array}\begin{array}{c}\text{CAREL\_\_\_.REPLC\_1}\ast \text{xxxxxxxxEFGE\_ELNO\_N +}\\ \text{CAREL\_\_\_.REPLC\_2}\ast \text{xxxxxxxxEFGE\_ELNO\_VY +}\\ \text{CAREL\_\_\_.REPLC\_3}\ast \text{xxxxxxxxEFGE\_ELNO\_VZ}\end{array}\)

where “xxxxxxxx” refers to the name of the result concept, produced by*Code_Aster*.

The calculation of the Moment vector (Mt, My, Mz) is done in the following way:

\(\begin{array}{c}\mathit{Mint}\text{=}\\ \\ \end{array}\begin{array}{c}\text{CAREL\_\_\_.REPLC\_1}\ast \text{xxxxxxxxEFGE\_ELNO\_MT +}\\ \text{CAREL\_\_\_.REPLC\_2}\ast \text{xxxxxxxxEFGE\_ELNO\_MFY +}\\ \text{CAREL\_\_\_.REPLC\_3}\ast \text{xxxxxxxxEFGE\_ELNO\_MFZ}\end{array}\)

where “xxxxxxxx” refers to the name of the result concept, produced by*Code_Aster*.

5.2. Fields that can be viewed

CHAM_MATER:

Material field

CARA_ELEM:

General characteristics of the bars

Geometric characteristics of the bars

General characteristics of beams

Geometric characteristics of the beams

Characteristics of the cables

Characteristics of curved beams

Characteristics of « fluid » beams

Characteristics of the discrete elements K_*

Characteristics of discrete elements M_*

Characteristics of discrete elements A_*

Geometric characteristics of shells

Orientation of 2D and 3D elements

Orientation of shells and beams

CHARGE:

Loading PESANTEUR

Loading ROTATION

Loading PRES_REP

Loading volume forces in 3D

Loading surface forces in 3D

Loading line forces in 3D

Loading 2D surface forces

Loading linear forces in 2D

Loading distributed forces for the shells

Loading PRE_EPSI

Loading FORCE_ELEC

Loading FLUX_THM_REP

Loading IMPE_FACE

Loading ONDE_FLUI