Mapping Commands from Old to New FLAC3D Syntax

This document lists commands from FLAC3D 5 (and earlier) and provides links to their FLAC3D 6 (and later) counterparts. Tip: using page search for the browser (Ctrl+F) can help locate a command quickly; the list below is extensive.

Table 1: Index For This Page: Commands by Function vs 5.0 Command

Boundary Conditions Applied at Gridpoints	APPLY
Boundary Conditions Applied at Zones	APPLY
Boundary Conditions Applied at Faces	APPLY
Remove Boundary Conditions	APPLY
Zone Attachment	ATTACH
General Program, Model, and Utility Operations	CALL, CONFIG, CONTINUE, CYCLE, DEFINE/END, ECHO, EXIT, EXPGRID, GEOM_TEST, GUI, HEADING, HELP, IMPGRID, LOAD, MAIL, NEW, PAUSE, PLAYBACK, QUIT, RANGE, RESTORE, RETURN, SAVE, SOLVE, STEP, STOP, SYSTEM, TABLE, TITLE, TRACE, TRACK, UNDO
Discrete Fracture Network (dfn) Operations	DFN
Extrude Operations	EXTRUDE
FISH Commands	FISH, DEFINE
Set & Remove Gridpoint Conditions	FIX, FREE
Zone Generation Operations	GENERATE
Geometry Operations	GEOMETRY
Gridpoint Command	GP
Group Command	GROUP
History Operations	HISTORY
Initialization Operations	INITIAL
Interface Operations	INTERFACE
User-Data Operations	LABEL, SCALAR, TENSOR, VECTOR, TABLE
List Operations	LIST
Constitutive Model Assignment and Properties	MODEL, PROPERTY
Structural Element Operations	SEL
Configuration Operations	SET
Fluid-Flow Analysis Operations & Utilities	WATER, CONFIG, TRACK

Table 2: Boundary Conditions Applied at Gridpoints

FLAC3D 5.0	FLAC3D 6.0
	:literal:`　 Mechanical Boundaries`
APPLY daccel	zone face apply acceleration-dip
APPLY dvelocity	zone face apply velocity-dip
APPLY ff	zone dynamic free-field
APPLY naccel	zone face apply acceleration-normal
APPLY nvelocity	zone face apply velocity-normal
APPLY saccel	zone face apply acceleration-strike
APPLY svelocity	zone face apply velocity-strike
APPLY xaccel	zone face apply acceleration-x
APPLY xforce	zone gridpoint fix force-applied-x
APPLY xreaction	zone face apply reaction-x
APPLY xvelocity	zone face apply velocity-x
APPLY yaccel	zone face apply acceleration-y
APPLY yforce	zone gridpoint fix force-applied-y
APPLY yreaction	zone face apply reaction-y
APPLY yvelocity	zone face apply velocity-y
APPLY zaccel	zone face apply acceleration-z
APPLY zforce	zone gridpoint fix force-applied-z
APPLY zreaction	zone face apply reaction-z
APPLY zvelocity	zone face apply velocity-z
	:literal:`　 Fluid-Flow Boundaries`
APPLY pp	zone face apply pore-pressure
APPLY pwell	zone gridpoint fix well
	:literal:`　 Thermal Boundaries`
APPLY psource	zone gridpoint fix source

Table 3: Boundary Conditions Applied at Zones

FLAC3D 5.0	FLAC3D 6.0
	:literal:`　 Mechanical Boundaries`
APPLY xbodyforce	zone apply force-x
APPLY ybodyforce	zone apply force-y
APPLY zbodyforce	zone apply force-z
	:literal:`　 Fluid-Flow Boundaries`
APPLY vwell	zone apply well
	:literal:`　 Thermal Boundaries`
APPLY vsource	zone apply source

Table 4: Boundary Conditions Applied at Faces

FLAC3D 5.0	FLAC3D 6.0
	:literal:`　 Mechanical Boundaries`
APPLY dquiet	zone face apply quiet-dip
APPLY dstress	zone face apply stress-dip
APPLY nquiet	zone face apply quiet-normal
APPLY nstress	zone face apply stress-normal
APPLY squiet	zone face apply quiet-strike
APPLY sstress	zone face apply stress-strike
APPLY sxx	zone face apply stress-xx
APPLY sxy	zone face apply stress-xy
APPLY sxz	zone face apply stress-xz
APPLY syy	zone face apply stress-yy
APPLY syz	zone face apply stress-yz
APPLY szz	zone face apply stress-zz
	:literal:`　 Fluid-Flow Boundaries`
APPLY discharge	zone face apply discharge
APPLY leakage	zone face apply leakage
	:literal:`　 Thermal Boundaries`
APPLY convection	zone face apply convection
APPLY flux	zone face apply flux

Table 5: Remove Boundary Conditions

FLAC3D 5.0	FLAC3D 6.0
APPLY remove <keyword>	zone face apply-remove, zone apply-remove, or zone gridpoint free (un- fix) in opposition to the apply-type command used to create the boundary, as listed above

Table 6: Zone Attachment

FLAC3D 5.0	FLAC3D 6.0
ATTACH delete	zone attach delete
	:literal:`　 Face attachments`
ATTACH angtol	zone attach by-face tolerance-angle
ATTACH nosnap	zone attach by-face snap
ATTACH tolerance	zone attach by-face tolerance-relative
	:literal:`　 Gridpoint attachments`
ATTACH gp	zone attach gridpointid

Table 7: General Program, Model, and Utility Operations

FLAC3D 5.0	FLAC3D 6.0
CALL	program call
CONFIG cppfish	model configure plugin
CONFIG cppudm	model configure plugin
CONFIG creep	model configure creep
CONFIG dynamic	model configure dynamic
CONFIG fluid	model configure fluid-flow
CONFIG thermal	model configure thermal
CONTINUE	program continue
CYCLE	model cycle
DEFINE … END	fish define and end (note end is a statement, not a command, so it is not preceded by fish)
DELETE namedrange	not supported
DELETE track	zone fluid track delete
DELETE zones	zone delete
DOMAIN	model domain
ECHO	program echo-line
EXIT	program exit
EXPGRID	zone export
GEOM_TEST	zone geometry-test
GUI	project save
HEADING	model title
HELP	help
IMPGRID	zone import
LOAD	program load
MAIL	program mail
NEW	model new
PAUSE	program pause
PLAYBACK	program playback
QUIT	program quit
RANGE	model range
RESTORE	model restore
RETURN	program return
SAVE	model save
SOLVE	model solve
SOLVE fos	model factor-of-safety
STEP	model step
STOP	program stop
SYSTEM	program system
TABLE	table add (and associated commands)
TITLE	model title
TRACE	trace name
TRACK	zone fluid track
UNDO	program undo

Table 8: Discrete Fracture Network (dfn) Operations

FLAC3D 5.0	FLAC3D 6.0
DFN addfracture	fracture create
DFN delete	fracture delete
DFN export	fracture export
DFN extra	fracture extra and fracture dfn-extra
DFN generate	fracture generate
DFN gimport	fracture import from-geometry
DFN group	fracture group and fracture dfn-group
DFN import	fracture import
DFN information	fracture verify-file
DFN intersection	fracture intersections compute and fracture intersections delete
DFN property	fracture property
DFN setproperty	fracture set-property
DFN template	fracture template create and fracture template delete

Table 9: Extrude Operations

FLAC3D 5.0	FLAC3D 6.0
EXTRUDE block	extrude block create (and associated extrude block commands)
EXTRUDE delete	delete is performed by object type, for instance: extrude block delete
EXTRUDE edge	extrude edge create (and associated extrude edge commands)
EXTRUDE list	list is performed by object type, for instance extrude segment list
EXTRUDE metadata	extrude set metadata
EXTRUDE point	extrude point create (and associated extrude point commands)
EXTRUDE select	extrude set select
EXTRUDE set	extrude set select (and associated extrude set commands)
EXTRUDE transform	transform is performed by object type, for instance extrude point transform

Table 10: FISH Commands

FLAC3D 5.0	FLAC3D 6.0
FISH create	fish create
FISH debug	fish debug
FISH define	fish define (note end is a statement, not a command, so it is not preceded by fish when used with fish define)

Table 11: Set & Remove Gridpoint Conditions

FLAC3D 5.0	FLAC3D 6.0
FIX/FREE pp	zone gridpoint fix pore-pressure, zone gridpoint free pore-pressure
FIX/FREE temperature	zone gridpoint fix temperature, zone gridpoint free temperature
FIX/FREE xvelocity	zone gridpoint fix velocity-x, zone gridpoint free velocity-x
FIX/FREE yvelocity	zone gridpoint fix velocity-y, zone gridpoint free velocity-y
FIX/FREE zvelocity	zone gridpoint fix velocity-z, zone gridpoint free velocity-z

Table 12: Zone Generation Operations

FLAC3D 5.0	FLAC3D 6.0
GENERATE zone brick (et al.)	zone create [meshshape] (brick, wedge, etc.)
GENERATE zone copy	zone copy
GENERATE zone densify	zone densify
GENERATE zone extrude	zone generate from-sketch
GENERATE zone reflect	zone reflect
GENERATE merge	zone gridpoint merge
GENERATE separate face	zone separate by-face
GENERATE topography	zone generate from-topography

Table 13: Geometry Operations

FLAC3D 5.0	FLAC3D 6.0
GEOMETRY copy	geometry copy
GEOMETRY edge	geometry edge create
GEOMETRY export	geometry export
GEOMETRY group	geometry assign-groups
GEOMETRY import	geometry import
GEOMETRY node	geometry node create
GEOMETRY paint	geometry paint
GEOMETRY polygon	geometry polygon create
GEOMETRY remove	geometry polygon delete, geometry edge delete, geometry node delete
GEOMETRY set	geometry select

Table 14: Gridpoint Command

FLAC3D 5.0	FLAC3D 6.0
GP	zone gridpoint create

Table 15: Group Command

FLAC3D 5.0	FLAC3D 6.0
GROUP zone (et al.)	grouping is a facility (keyword) within other commands; see, for instance, zone group, structure node group, extrude edge group, etc.

Table 16: History Operations

FLAC3D 5.0	FLAC3D 6.0
HISTORY add zone (et al.)	Adding a history on an object is done through the object; for instance, zone history or structure node history or fish history, etc. Histories at gridpoints are done using the gridpointid or position keywords in the zone history command.
HISTORY crtime	model history creep time-total
HISTORY dytime	model history dynamic time-total
HISTORY fltime	model history fluid time-total
HISTORY thtime	model history thermal time-total
HISTORY dt	model history timestep
HISTORY delete	history delete
HISTORY dump	history list series
HISTORY hist_rep	history interval
HISTORY label	history.name a label (see history name label)
HISTORY limits	history list limit
HISTORY list	history list series
HISTORY ncycle	history interval
HISTORY nstep	history interval
HISTORY purge	history purge
HISTORY reset	history delete
HISTORY write	history list series

Table 17: Initialization Operations

FLAC3D 5.0	FLAC3D 6.0
INITIAL biot_modulus	zone gridpoint initialize biot-modulus
INITIAL damping	zone dynamic damping or zone mechanical damping
INITIAL density	zone initialize density
INITIAL displacement	zone gridpoint initialize displacement
INITIAL fdensity	zone initialize fluid-density
INITIAL fmodulus	zone gridpoint initialize fluid-modulus
INITIAL ftens	zone gridpoint initialize fluid-tension
INITIAL gpextra	zone gridpoint initialize extra
INITIAL position	zone gridpoint initialize position
INITIAL pp	zone gridpoint initialize pore-pressure
INITIAL principal	zone initialize stress-principal
INITIAL saturation	zone gridpoint initialize saturation
INITIAL smalldisp	zone gridpoint initialize displacement-small
INITIAL state	zone initialize state
INITIAL stress	zone initialize stress xx
INITIAL sxx	zone initialize stress-xx
INITIAL sxy	zone initialize stress-xy
INITIAL sxz	zone initialize stress-xz
INITIAL syy	zone initialize stress-yy
INITIAL syz	zone initialize stress-yz
INITIAL szz	zone initialize stress-zz
INITIAL temperature	zone gridpoint initialize temperature
INITIAL velocity	zone gridpoint initialize velocity
INITIAL xdisplacement	zone gridpoint initialize displacement-x
INITIAL xposition	zone gridpoint initialize position-x
INITIAL xsmalldisp	zone gridpoint initialize displacement-small-x
INITIAL xvelocity	zone gridpoint initialize velocity-x
INITIAL ydisplacement	zone gridpoint initialize displacement-y
INITIAL yposition	zone gridpoint initialize position-y
INITIAL ysmalldisp	zone gridpoint initialize displacement-small-y
INITIAL yvelocity	zone gridpoint initialize velocity-y
INITIAL zdisplacement	zone gridpoint initialize displacement-z
INITIAL zextra	zone initialize extra
INITIAL zposition	zone gridpoint initialize position-z
INITIAL zsmalldisp	zone gridpoint initialize displacement-small-z
INITIAL zvelocity	zone gridpoint initialize velocity-z

Table 18: Interface Operations

FLAC3D 5.0	FLAC3D 6.0
in 5.0 syntax integer i is supplied where 1 appears in this column	in 6.0 syntax i is a string (that may be a numeral)
INTERFACE 1 ctolerance	zone interface '1' tolerance-contact (see zone interface tolerance-contact)
INTERFACE 1 delete	zone interface '1' element delete (see zone interface element delete)
INTERFACE 1 eextra	zone interface '1' element extra (see zone interface element extra)
INTERFACE 1 effective	zone interface '1' effective (see zone interface effective)
INTERFACE 1 element	zone interface '1' create element (see zone interface create element)
INTERFACE 1 face	zone interface '1' create by-face (see zone interface create by-face)
INTERFACE 1 inistress	zone interface '1' node initialize-stresses (see zone interface node initialize-stresses)
INTERFACE 1 maxedge	zone interface '1' element maximum-edge (see zone interface element maximum-edge)
INTERFACE 1 nextra	zone interface '1' node extra (see zone interface node extra)
INTERFACE 1 node	zone interface '1' create node (see zone interface create node)
INTERFACE 1 nstress	zone interface '1' node stress-normal-increment (see zone interface node stress-normal-increment)
INTERFACE 1 permeability	zone interface '1' permeability (see zone interface permeability)
INTERFACE 1 property	zone interface '1' node property (see zone interface node property)
INTERFACE 1 sheardisp	zone interface '1' node displacement-shear (see zone interface node displacement-shear)
INTERFACE 1 smalldisp	zone interface '1' node displacement-small (see zone interface node displacement-small)
INTERFACE 1 sstress	zone interface '1' node stress-shear (see zone interface node stress-shear)
INTERFACE 1 update	zone interface '1' node update (see zone interface node update)
INTERFACE 1 wrap	no translation; see zone interface create by-face for alternative construction

Table 19: User-Data Operations

FLAC3D 5.0	FLAC3D 6.0
LABEL arrow	data label create arrow
LABEL delete	data label delete
LABEL end	data label create end
LABEL text	data label create text
LABEL x y z	data label create position
the first four above optionally take an index with the “id” keyword (i.e., LABEL id 1 arrow),	in which case the corresponding translation is data label create name "1" arrow, where the index is now a string (that may be a numeral)
SCALAR add	data scalar create
TENSOR add	data tensor create
VECTOR add	data vector create
for the three above, the “import”, “export”, and “remove” keywords will follow the same pattern as “add”	with comparable translations (e.g., “SCALAR remove” will be data scalar delete), though note that “remove” becomes “delete” in 6.0 as seen in this example (“import” and “export” are used in both 5.0 and 6.0 syntax)
TABLE	table add (and associated commands)

Table 20: List Operations

FLAC3D 5.0	FLAC3D 6.0
LIST apply	zone list apply or zone face list apply
LIST attach	zone attach list
LIST creep	model creep list
LIST dfn	fracture list
LIST directory	program list directory
LIST domain	model list domain
LIST dynamic	model dynamic list
LIST extrude	extrude block list, extrude edge list, extrude point list, extrude segment list, extrude set list
LIST fish	fish list
LIST fluid	model fluid list
LIST fos	model factor-of-safety list
LIST geometry	geometry list
LIST globals	model list information
LIST gp	zone gridpoint list
LIST group	group list
LIST history	history list
LIST information	program list information
LIST interface 1	zone interface "1" list (see zone interface list)
LIST keyinfo	program list key-information
LIST label	data label list
LIST mechanical	model mechanical list
LIST memory	program list memory
LIST model	program list plugins
LIST principal	program list principal
LIST profile	zone list profile
LIST range	model list range
LIST record	model list record
LIST scalar	data scalar list
LIST security	program list security
LIST sel beam	structure beam list
LIST sel cable	structure cable list
LIST sel geogrid	structure geogrid list
LIST sel liner	structure liner list
LIST sel link	structure link list
LIST sel node	structure node list
LIST sel pile	structure pile list
LIST sel recover	structure shell list resultant and structure shell list stress and structure shell list stress-principal (and similar constructions for liners (e.g., structure liner list resultant) and geogrids (e.g., structure geogrid list stress)
LIST sel shell	structure shell list
LIST serial	program list serial
LIST table 1	table "1" list (see table list)
LIST tensor	data tensor list
LIST tetra	zone list tetrahedra
LIST thermal	model thermal list
LIST trace	trace list
LIST track	zone fluid track list
LIST vector	data vector list
LIST version	program list version
LIST water	zone water list
LIST zone	zone list

Table 21: Constitutive Model Assignment and Properties

FLAC3D 5.0	FLAC3D 6.0
MODEL	zone cmodel assign
PROPERTY	zone property (and also see zone property-distribution)

Table 22: Structural Element Operations

FLAC3D 5.0	FLAC3D 6.0
SEL beam apply	structure beam apply
SEL beam begin … end … nseg	structure beam create
SEL beam id	see id keyword of structure beam create
SEL beam property	structure beam property
SEL beamsel cid	see structure beam create
SEL beamsel id	see structure beam create
SEL beamsel nodes	see structure beam create
SEL cable begin … end … nseg	structure cable create
SEL cable id	see id keyword of structure cable create
SEL cable pretension	structure cable apply
SEL cable property	structure cable property
SEL cablesel cid	see structure cable create
SEL cablesel id	see structure cable create
SEL cablesel nodes	see structure cable create
SEL delete beam	structure beam delete
SEL delete cable	structure cable delete
SEL delete geogrid	structure geogrid delete
SEL delete liner	structure liner delete
SEL delete link	structure link delete
SEL delete node	structure node delete
SEL delete pile	structure pile delete
SEL delete sel	not supported; delete by type of structure
SEL delete shell	structure shell delete
SEL geogrid apply	structure geogrid apply
SEL geogrid crossdiag	see cross-diagonal keyword of structure geogrid create
SEL geogrid elemtype	see element-type keyword of structure geogrid create
SEL geogrid id	see id keyword of structure geogrid create
SEL geogrid internal	see internal keyword of structure geogrid create
SEL geogrid property	structure geogrid property
SEL geogridsel cid	see structure geogrid create
SEL geogridsel elemtype	see structure geogrid create
SEL geogridsel id	see structure geogrid create
SEL geogridsel nodes	see structure geogrid create
SEL group	not supported, define groups by structure type (e.g., structure cable group or structure shell group, and so on)
SEL join	no equivalent; see structure node join or structure link create
SEL liner apply	structure liner apply
SEL liner crossdiag	see cross-diagonal keyword of structure liner create
SEL liner elemtype	see element-type keyword of structure liner create
SEL liner embedded	see embedded keyword of structure liner create
SEL liner id	see id keyword of structure liner create
SEL liner internal	see internal keyword of structure liner create
SEL liner property	structure liner property
SEL linersel cid	see structure liner create
SEL linersel elemtype	see structure liner create
SEL linersel id	see structure liner create
SEL linersel nodes	see structure liner create
SEL link attach	structure link attach
SEL link constit	see structure link attach
SEL link id	structure link create on-nodeid
SEL link net
SEL link target	structure link create target
SEL node apply	structure node apply
SEL node fix	structure node fix
SEL node free	structure node free
SEL node id	not supported (no equivalent)
SEL node init	structure node initialize
SEL node ldamp	structure node damping-local
SEL node local	structure node system-local
SEL pile apply	structure pile apply
SEL pile begin … end … nseg	structure pile create
SEL pile id	see id keyword of structure pile create
SEL pile property	structure pile property
SEL pilesel cid	see structure pile create
SEL pilesel id	see structure pile create
SEL pilesel nodes	see structure pile create
SEL recover sres	not supported, recover stress resultants by shell-type structure (e.g., structure shell recover resultants)
SEL recover stress	not supported, recover stress by shell-type structure (e.g., structure geogrid recover stress)
SEL recover surface	not supported, recover surface system by shell-type structure (e.g., structure liner recover surface)
SEL refine	not supported, refine 1d elements by type (e.g., structure pile refine)
SEL set damp	structure mechanical damping
SEL set liner	structure liner gap-factor
SEL set link node_tol	structure link tolerance-node
SEL set link zone_tol	structure link tolerance-contact
SEL set safety fac	structure safety-factor
SEL set scale rmass	structure scale-rotational-mass
SEL shell apply	structure shell apply
SEL shell crossdiag	see cross-diagonal keyword of structure shell create
SEL shell elemtype	see element-type keyword of structure shell create
SEL shell id	see id keyword of structure shell create
SEL shell internal	see internal keyword of structure shell create
SEL shell property	structure geogrid propertystructure shell property
SEL shellsel cid	see structure shell create
SEL shellsel elemtype	see structure shell create
SEL shellsel id	see structure shell create
SEL shellsel nodes	see structure shell create

Table 23: Configuration Operations

FLAC3D 5.0	FLAC3D 6.0
SET case_sensitivity	not supported; case sensitivity may no longer be turned on
SET creep	model creep
SET cust1	program customer-title-1
SET cust2	program customer-title-1
SET deterministic	model deterministic
SET directory	program directory
SET display	model display
SET dynamic	model dynamic
SET echo	program echo
SET fish	see all fish commands (e.g., fish automatic-create, fish callback, fish debug, etc.)
SET fluid	model fluid
SET geom_rep	zone geometry-update
SET geometry	zone geometry-tolerance
SET gravity	model gravity
SET hist_rep	history interval
SET large	model largestrain
SET log	program log
SET logfile	program log-file
SET mechanical	model mechanical
SET ncycle	history interval
SET nmd	zone nodal-mixed-discretization
SET notice	program notice
SET nstep	history interval
SET pagination	program pagination
SET plotinterval	model update-interval
SET processors	program threads
SET random	model random
SET ratio	zone ratio
SET safe_conversion	not supported; safe conversion may no longer be turned off
SET small	model largestrain off
SET thermal	model thermal
SET trace_rep	trace interval
SET track	zone fluid track
SET warning	program warning
CONFIG cppfish	model configure plugin
CONFIG cppudm	model configure plugin
CONFIG creep	model configure creep
CONFIG dynamic	model configure dynamic
CONFIG fluid	model configure fluid-flow
CONFIG thermal	model configure thermal

Table 24: Fluid-Flow Analysis Operations & Utilities

FLAC3D 5.0	FLAC3D 6.0
WATER calc_pp	zone water set
WATER density	zone water density
WATER no_pp
WATER set	zone water set
WATER table	zone water plane
CONFIG fluid	model configure fluid-flow
TRACK	zone fluid track create