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~CFFL3D

 

~CFFL3D, NDIV1, NDIV2, NDIV3, TETKEY

Exports an ANSYS+CivilFEM model to FLAC3D by generating a FISH file

PREP7 : GEOTECHNICAL MODULE: FLAC3D

NDIV1

Number of divisions in each FLAC zone at direction 1 (by default NDIV1=1)

NDIV2

Number of divisions in each FLAC zone at direction 2 (by default NDIV2=NDIV1)

NDIV3

Number of divisions in each FLAC zone at direction 3 (by default NDIV3=NDIV1)

TETKEY

Meshing conversion key.

0	Keep the original meshing. Default option.
1	Converts the tetrahedral elements into hexahedral elements once exported to FLAC.

Notes

- In order to assure the correct working of different zone divisions in each direction (X, Y, Z), the mesh should be conveniently done.

- This command exports the selected elements of the following types:

Elements used to model the earth:	SOLID45
Structural elements:	LINK8, BEAM4, BEAM44, SHELL43, SHELL63

- The files CFTOFL3D.DAT (with the exported database ready to be read by FLAC) and FL3DRES.DAT (with the routine to be used to export FLAC results to CivilFEM) are generated when applying this command.

- Furthermore, this command generates an error file called CFTOFL3D.ERR that is automatically shown after applying the command. The errors and warnings produced during exporting the model are listed in this file.

- If the exporting process produces errors, the exporting file (CFTOFL3D.DAT) is not created. The errors must be corrected and the command must be applied again after that.

- If the exporting process produces WARNINGS, the exporting file (CFTOFL3D.DAT) is created but there will be some data not defined in ANSYS+CivilFEM and needed by FALC to solve the model. These data should be introduced in the exporting file (all the warnings are reflected in this file) by looking for the corresponding warning and assigning the value in the following line. For example:

File CFTOFL3D.ERR:

EXPORT ANSYS+CIVILFEM DATABASE TO FLAC 3D

WARNING 1: PROP TENSION material 2 not defined

 

1     warnings written to CFTOFL3D.ERR

0     errors   written to CFTOFL3D.ERR

File CFTOFL3D.DAT (in this file we can see the property that should be introduced in order to carry out the calculation with FLAC):

; WARNING 1:

; PROPERTY TENSION   0.000000000E+00 range group MAT00002

 

- The material of the structural elements should be defined in CivilFEM since the element type to be exported to FLAC is indicated by the user when defining the material (see ~CFMP command). If the material is not defined using CivilFEM commands, the structural elements are ignored and they are not exported to FLAC.

Menu Paths

Main Menu > Civil Preprocessor > FLAC3D > Export model

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