Translating ANSYS Input Files to Partial Abaqus Input Files

The translator from ANSYS to Abaqus converts certain entities in an ANSYS blocked coded database file into their equivalent in an Abaqus input file.

This page discusses:

Using the Translator

The abaqus fromansys translator can convert ANSYS blocked coded database files (.cdb) into a “flat” Abaqus input file; that is, an Abaqus input file that is not written in terms of parts and assemblies. The .cdb file must be created in ANSYS using the following command:

CDWRITE , , <jobname>, cdb

The second field of the CDWRITE command may contain ALL or DB. The eighth field may contain BLOCKED. Any other use of the CDWRITE command will create problems for the translator.

Summary of ANSYS Entities Translated

The translator from ANSYS to Abaqus supports the mappings shown in the tables below.

Table 1. Nodal data mapping for ANSYS commands.
ANSYS commandAbaqus equivalent
NBLOCK NODETRANSFORM
Table 2. Element data mapping for ANSYS structural lines.
ANSYS commandAbaqus equivalent
LINK1 ELEMENT, TYPE=T2D2
LINK8 ELEMENT, TYPE=T3D2
LINK10 ELEMENT, TYPE=T3D2
LINK11 ELEMENT, TYPE=T3D2
LINK180 ELEMENT, TYPE=T3D2
Table 3. Element data mapping for ANSYS structural beams.
ANSYS commandAbaqus equivalent
BEAM3 ELEMENT, TYPE=B21
BEAM4 ELEMENT, TYPE=B31
BEAM23 ELEMENT, TYPE=B21
BEAM24 ELEMENT, TYPE=B31
BEAM188 ELEMENT, TYPE=B31 or B32
BEAM189 ELEMENT, TYPE=B32
Table 4. Element data mapping for ANSYS structural shells.
ANSYS commandAbaqus equivalent
SHELL43 ELEMENT, TYPE=S4 or S3
SHELL63 ELEMENT, TYPE=S4, S3, M3D4, or M3D3
SHELL93 ELEMENT, TYPE=S8R or STRI65
SHELL181 ELEMENT, TYPE=S4R or S3R
Table 5. Element data mapping for ANSYS structural pipes.
ANSYS commandAbaqus equivalent
PIPE16 ELEMENT, TYPE=PIPE32 
PIPE20 ELEMENT, TYPE=PIPE31
PIPE59 ELEMENT, TYPE=PIPE31
Table 6. Element data mapping for ANSYS planar elements.
ANSYS commandAbaqus equivalent
PLANE42PLANE82PLANE182PLANE183 ELEMENT, TYPE=CPSn, CAXn, or CPEn
Table 7. Element data mapping for ANSYS solid elements.
ANSYS commandAbaqus equivalent
SOLID45 ELEMENT, TYPE=C3D8I, C3D4, or C3D6
SOLID65 ELEMENT, TYPE=C3D8I, C3D4, or C3D6
SOLID92 ELEMENT, TYPE=C3D10
SOLID95 ELEMENT, TYPE=C3D20, C3D10, or C3D15
SOLID147 ELEMENT, TYPE=C3D20, C3D10, or C3D15
SOLID148 ELEMENT, TYPE=C3D10
SOLID185 ELEMENT, TYPE=C3D8, C3D4, or C3D6
SOLID186 ELEMENT, TYPE=C3D20R, C3D10, or C3D15
SOLID187 ELEMENT, TYPE=C3D10
Table 8. Load and boundary condition data mapping.
ANSYS commandAbaqus equivalent
SFE, ELEM, LKEY, PRES, KVAL, VAL1, VAL2, VAL3, VAL4,where VAL1=VAL2=VAL3=VAL4=n SURFACE and DSLOAD
SFE, ELEM, LKEY, HFLU, KVAL, VAL1, VAL2, VAL3, VAL4,where VAL1=VAL2=VAL3=VAL4=n SURFACE and DSFLUX
BF, NODE, TEMP, VAL1, VAL2, VAL3, VAL4 TEMPERATURE and CFLUX
BFE, NODE, HGEN, STLOCVAL1, VAL2, VAL3, VAL4 DFLUX
ACEL, 1-component, 2-component, 3-component DLOAD
F, NODE, Lab, VALUE, VALUE2, NEND, NINC,where Lab=FX, FY, or FZ CLOAD
D, NODE, Lab, VALUE, VALUE2, NEND, NINC,where Lab=UX ,UY, UZ, ROTX, ROTY, or ROTZ BOUNDARY
Table 9. Material data mapping.
ANSYS commandAbaqus equivalent
MPTEMP, …MPDATA, … , EXMPDATA, … , NUXY or PRXY MATERIAL and ELASTIC

Minor Poisson's ratios (such as NUXY), if present, are automatically converted to major Poisson's ratios (such as PRXY).

MPTEMP, ….MPDATA, … , EXMPDATA, … , EYMPDATA, … , EZMPDATA, … , NUXY or PRXYMPDATA, … , NUXZ or PRXZMPDATA, … , NUYZ or PRYZMPDATA, … , GXYMPDATA, … , GXZMPDATA, … , GYZ MATERIAL and ELASTIC, TYPE=ENGINEERING CONSTANTS

Minor Poisson's ratios (such as NUXY), if present, are automatically converted to major Poisson's ratios (such as PRXY).

MPTEMP, …MPDATA, … , KXX MATERIAL and CONDUCTIVITY
MPTEMP, …MPDATA, … , DENS DENSITY
MPTEMP, …MPDATA, … , C SPECIFIC HEAT
MPTEMP, …MPDATA, … , CTEX or ALPX EXPANSION

Command Summary

abaqus fromansysjobjob-nameinputinput-file

Command Line Options

job

This option is used to specify the name of the Abaqus input file to be output by the translator. It is also the default name of the input file containing the ANSYS data. Diagnostics created by the translator will be written to a file named job-name.log.

input

This option is used to specify the name of the file containing the ANSYS data if it is different from job-name.