FEA Mesh Functions

The following group of API functions supports all functionality of the FEA Mesh Tool. Structures, FEA Parts, materials, and properties can be defined and manipulated. Mesh and output file settings can be adjusted, and an FEA mesh can be generated.

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Functions
int	AddFeaStruct (const string &in geom_id, bool init_skin=true, int surfindex=0)
void	DeleteFeaStruct (const string &in geom_id, int fea_struct_ind)
string	GetFeaStructID (const string &in geom_id, int fea_struct_ind)
int	GetFeaStructIndex (const string &in struct_id)
string	GetFeaStructParentGeomID (const string &in struct_id)
string	GetFeaStructName (const string &in geom_id, int fea_struct_ind)
void	SetFeaStructName (const string &in geom_id, int fea_struct_ind, const string &in name)
void	SetFeaPartName (const string &in part_id, const string &in name)
void	SetFeaMeshVal (const string &in geom_id, int fea_struct_ind, int type, double val)
void	SetFeaMeshFileName (const string &in geom_id, int fea_struct_id, int file_type, const string &in file_name)
void	ComputeFeaMesh (const string &in geom_id, int fea_struct_ind, int file_type)
void	ComputeFeaMesh (const string &in struct_id, int file_type)
string	AddFeaPart (const string &in geom_id, int fea_struct_ind, int type)
void	DeleteFeaPart (const string &in geom_id, int fea_struct_ind, const string &in part_id)
string	AddFeaSubSurf (const string &in geom_id, int fea_struct_ind, int type)
void	DeleteFeaSubSurf (const string &in geom_id, int fea_struct_ind, const string &in ss_id)
string	AddFeaMaterial ()
string	AddFeaProperty (int property_type=0)

Detailed Description

Function Documentation

AddFeaMaterial()

string AddFeaMaterial

(

)

Add an FEA Material the FEA Mesh material library. Materials are available accross all Geoms and Structures.

//==== Create FeaMaterial ====//
string mat_id = AddFeaMaterial();
 
SetParmVal( FindParm( mat_id, "MassDensity", "FeaMaterial" ), 0.016 );

Returns

FEA Material ID

AddFeaPart()

string AddFeaPart	(	const string &in	geom_id,
		int	fea_struct_ind,
		int	type
	)

Add an FEA Part to a Structure

//==== Add Pod Geometry ====//
string pod_id = AddGeom( "POD" );
 
//==== Add FeaStructure to Pod ====//
int struct_ind = AddFeaStruct( pod_id );
 
//==== Add Bulkead ====//
string bulkhead_id = AddFeaPart( pod_id, struct_ind, FEA_SLICE );
 
SetParmVal( FindParm( bulkhead_id, "IncludedElements", "FeaPart" ), FEA_SHELL_AND_BEAM );
 
SetParmVal( FindParm( bulkhead_id, "RelCenterLocation", "FeaPart" ), 0.15 );

See also

FEA_PART_TYPE

Parameters

[in]	geom_id	Parent Geom ID
[in]	fea_struct_ind	FEA Structure index
[in]	type	FEA Part type enum (i.e. FEA_RIB)

Returns

FEA Part ID

AddFeaProperty()

string AddFeaProperty

(

int

property_type = 0

)

Add aa FEA Property the FEA Mesh property library. Properties are available accross all Geoms and Structures. Currently only beam and shell properties are available. Note FEA_SHELL_AND_BEAM is not a valid property type.

//==== Create FeaProperty ====//
string prop_id = AddFeaProperty();
 
SetParmVal( FindParm( prop_id, "Thickness", "FeaProperty" ), 0.01 );

See also

FEA_PART_ELEMENT_TYPE

Parameters

[in]

property_type

FEA Property type enum (i.e. FEA_SHELL).

Returns

FEA Property ID

AddFeaStruct()

int AddFeaStruct	(	const string &in	geom_id,
		bool	init_skin = true,
		int	surfindex = 0
	)

Add an FEA Structure to a specified Geom. Note, init_skin should ALWAYS be true.

//==== Add Pod Geometry ====//
string pod_id = AddGeom( "POD" );
 
//==== Add FeaStructure to Pod ====//
int struct_ind = AddFeaStruct( pod_id );

Parameters

[in]	geom_id	Parent Geom ID
[in]	init_skin	Flag to initialize the FEA Structure by creating an FEA Skin from the parent Geom's OML at surfindex
[in]	surfindex	Main surface index for the FEA Structure

Returns

FEA Structure index

AddFeaSubSurf()

string AddFeaSubSurf	(	const string &in	geom_id,
		int	fea_struct_ind,
		int	type
	)

Add an FEA SubSurface to a Structure

//==== Add Pod Geometry ====//
string pod_id = AddGeom( "POD" );
 
//==== Add FeaStructure to Pod ====//
int struct_ind = AddFeaStruct( pod_id );
 
//==== Add LineArray ====//
string line_array_id = AddFeaSubSurf( pod_id, struct_ind, SS_LINE_ARRAY );
 
SetParmVal( FindParm( line_array_id, "ConstLineType", "SS_LineArray" ), 1 ); // Constant W
 
SetParmVal( FindParm( line_array_id, "Spacing", "SS_LineArray" ), 0.25 );

See also

SUBSURF_TYPE

Parameters

[in]	geom_id	Parent Geom ID
[in]	fea_struct_ind	FEA Structure index
[in]	type	FEA SubSurface type enum (i.e. SS_ELLIPSE)

Returns

FEA SubSurface ID

ComputeFeaMesh() [1/2]

void ComputeFeaMesh	(	const string &in	geom_id,
		int	fea_struct_ind,
		int	file_type
	)

Compute an FEA Mesh for a Structure. Only a single output file can be generated with this function.

//==== Add Pod Geometry ====//
string pod_id = AddGeom( "POD" );
 
//==== Add FeaStructure to Pod ====//
int struct_ind = AddFeaStruct( pod_id );
 
struct_ind = GetFeaStructIndex( struct_id );
 
//==== Generate FEA Mesh and Export ====//
Print( string( "--> Generating FeaMesh " ) );
 
ComputeFeaMesh( parent_id, struct_ind, FEA_CALCULIX_FILE_NAME );
// Could also call ComputeFeaMesh ( struct_id, FEA_CALCULIX_FILE_NAME );

See also

SetFeaMeshFileName, FEA_EXPORT_TYPE

Parameters

[in]	geom_id	Parent Geom ID
[in]	fea_struct_ind	FEA Structure index
[in]	file_type	FEA output file type enum (i.e. FEA_EXPORT_TYPE)

ComputeFeaMesh() [2/2]

void ComputeFeaMesh	(	const string &in	struct_id,
		int	file_type
	)

Compute an FEA Mesh for a Structure. Only a single output file can be generated with this function.

//==== Add Pod Geometry ====//
string pod_id = AddGeom( "POD" );
 
//==== Add FeaStructure to Pod ====//
int struct_ind = AddFeaStruct( pod_id );
 
struct_ind = GetFeaStructIndex( struct_id );
 
//==== Generate FEA Mesh and Export ====//
Print( string( "--> Generating FeaMesh " ) );
 
ComputeFeaMesh ( struct_id, FEA_CALCULIX_FILE_NAME ); 
// Could also call ComputeFeaMesh( parent_id, struct_ind, FEA_CALCULIX_FILE_NAME );

See also

SetFeaMeshFileName, FEA_EXPORT_TYPE

Parameters

[in]	struct_id	FEA Structure ID
[in]	file_type	FEA output file type enum (i.e. FEA_EXPORT_TYPE)

DeleteFeaPart()

void DeleteFeaPart	(	const string &in	geom_id,
		int	fea_struct_ind,
		const string &in	part_id
	)

Delete an FEA Part from a Structure

//==== Add Pod Geometry ====//
string pod_id = AddGeom( "POD" );
 
//==== Add FeaStructure to Pod ====//
int struct_ind = AddFeaStruct( pod_id );
 
//==== Add Bulkead ====//
string bulkhead_id = AddFeaPart( pod_id, struct_ind, FEA_SLICE );
 
//==== Add Fixed Point ====//
string fixed_id = AddFeaPart( pod_id, struct_ind, FEA_FIX_POINT );
 
//==== Delete Bulkead ====//
DeleteFeaPart( pod_id, struct_ind, bulkhead_id )

Parameters

[in]	geom_id	Parent Geom ID
[in]	fea_struct_ind	FEA Structure index
[in]	part_id	FEA Part ID

DeleteFeaStruct()

void DeleteFeaStruct	(	const string &in	geom_id,
		int	fea_struct_ind
	)

Delete an FEA Structure and all FEA Parts associated with it

//==== Add Pod Geometry ====//
string pod_id = AddGeom( "POD" );
 
//==== Add FeaStructure to Pod ====//
int struct_ind_1 = AddFeaStruct( pod_id );
 
int struct_ind_2 = AddFeaStruct( pod_id );
 
DeleteFeaStruct( pod_id, struct_ind_1 );

Parameters

[in]	geom_id	Parent Geom ID
[in]	fea_struct_ind	FEA Structure index

DeleteFeaSubSurf()

void DeleteFeaSubSurf	(	const string &in	geom_id,
		int	fea_struct_ind,
		const string &in	ss_id
	)

Delete an FEA SubSurface from a Structure

//==== Add Pod Geometry ====//
string pod_id = AddGeom( "POD" );
 
//==== Add FeaStructure to Pod ====//
int struct_ind = AddFeaStruct( pod_id );
 
//==== Add LineArray ====//
string line_array_id = AddFeaSubSurf( pod_id, struct_ind, SS_LINE_ARRAY );
 
//==== Add Rectangle ====//
string rect_id = AddFeaSubSurf( pod_id, struct_ind, SS_RECTANGLE );
 
//==== Delete LineArray ====//
DeleteFeaSubSurf( pod_id, struct_ind, line_array_id )

Parameters

[in]	geom_id	Parent Geom ID
[in]	fea_struct_ind	FEA Structure index
[in]	ss_id	FEA SubSurface ID

GetFeaStructID()

string GetFeaStructID	(	const string &in	geom_id,
		int	fea_struct_ind
	)

Get the ID of an FEA Structure

//==== Add Pod Geometry ====//
string pod_id = AddGeom( "POD" );
 
//==== Add FeaStructure to Pod ====//
int struct_ind = AddFeaStruct( pod_id );
 
string struct_id = GetFeaStructID( pod_id, struct_ind );

Parameters

[in]	geom_id	Parent Geom ID
[in]	fea_struct_ind	FEA Structure index

Returns

FEA Structure ID

GetFeaStructIndex()

int GetFeaStructIndex

(

const string &in

struct_id

)

Get the index of an FEA Structure in its Parent Geom's Structure vector

//==== Add Pod Geometry ====//
string pod_id = AddGeom( "POD" );
 
//==== Add FeaStructure to Pod ====//
int struct_ind_1 = AddFeaStruct( pod_id );
 
int struct_ind_2 = AddFeaStruct( pod_id );
 
string struct_id_2 = GetFeaStructID( pod_id, struct_ind_2 );
 
DeleteFeaStruct( pod_id, struct_ind_1 );
 
int struct_ind_2_new = GetFeaStructIndex( struct_id_2 )

Parameters

[in]

struct_id

FEA Structure ID

Returns

FEA Structure index

GetFeaStructName()

string GetFeaStructName	(	const string &in	geom_id,
		int	fea_struct_ind
	)

Get the name of an FEA Structure. The FEA Structure name functions as the the Parm Container name

//==== Add Pod Geometry ====//
string pod_id = AddGeom( "POD" );
 
//==== Add FeaStructure to Pod ====//
int struct_ind = AddFeaStruct( pod_id );
 
//==== Get Structure Name ====// 
string parm_container_name = GetFeaStructName( pod_id, struct_ind );
 
string display_name = string("Current Structure Parm Container Name: ") + parm_container_name + string("\n");
 
Print( display_name );

See also

FindContainer, SetFeaStructName

Parameters

[in]	geom_id	Parent Geom ID
[in]	fea_struct_ind	FEA Structure index

Returns

Name for the FEA Structure

GetFeaStructParentGeomID()

string GetFeaStructParentGeomID

(

const string &in

struct_id

)

Get the Parent Geom ID for an FEA Structure

//==== Add Pod Geometry ====//
string pod_id = AddGeom( "POD" );
 
//==== Add FeaStructure to Pod ====//
int struct_ind = AddFeaStruct( pod_id );
 
string struct_id = GetFeaStructID( pod_id, struct_ind );
 
//==== Get Parent Geom ID and Index ====//
string parent_id = GetFeaStructParentGeomID( struct_id );

Parameters

[in]

struct_id

FEA Structure ID

Returns

Parent Geom ID

SetFeaMeshFileName()

void SetFeaMeshFileName	(	const string &in	geom_id,
		int	fea_struct_id,
		int	file_type,
		const string &in	file_name
	)

Set the name of a particular FEA Mesh output file for a specified Structure

//==== Add Pod Geometry ====//
string pod_id = AddGeom( "POD" );
 
//==== Add FeaStructure to Pod ====//
int struct_ind = AddFeaStruct( pod_id );
 
struct_ind = GetFeaStructIndex( struct_id );
 
//=== Set Export File Name ===//
string export_name = "FEAMeshTest_calculix.dat";
 
SetFeaMeshFileName( parent_id, struct_ind, FEA_CALCULIX_FILE_NAME, export_name );

Parameters

[in]	geom_id	Parent Geom ID
[in]	fea_struct_id	FEA Structure index
[in]	file_type	FEA output file type enum (i.e. FEA_EXPORT_TYPE)
[in]	file_name	Name for the output file

SetFeaMeshVal()

void SetFeaMeshVal	(	const string &in	geom_id,
		int	fea_struct_ind,
		int	type,
		double	val
	)

Set the value of a particular FEA Mesh option for the specified Structure. Note, FEA Mesh makes use of enums initially created for CFD Mesh but not all CFD Mesh options are available for FEA Mesh.

//==== Add Pod Geometry ====//
string pod_id = AddGeom( "POD" );
 
//==== Add FeaStructure to Pod ====//
int struct_ind = AddFeaStruct( pod_id );
 
//==== Adjust FeaMeshSettings ====//
SetFeaMeshVal( pod_id, struct_ind, CFD_MAX_EDGE_LEN, 0.75 );
 
SetFeaMeshVal( pod_id, struct_ind, CFD_MIN_EDGE_LEN, 0.2 );

See also

CFD_CONTROL_TYPE

Parameters

[in]	geom_id	Parent Geom ID
[in]	fea_struct_ind	FEA Structure index
[in]	type	FEA Mesh option type enum (i.e. CFD_MAX_EDGE_LEN)
[in]	val	Value the option is set to

SetFeaPartName()

void SetFeaPartName	(	const string &in	part_id,
		const string &in	name
	)

Set the name of an FEA Part

//==== Add Pod Geometry ====//
string pod_id = AddGeom( "POD" );
 
//==== Add FeaStructure to Pod ====//
int struct_ind = AddFeaStruct( pod_id );
 
//==== Add Bulkead ====//
string bulkhead_id = AddFeaPart( pod_id, struct_ind, FEA_SLICE );
 
SetFeaPartName( bulkhead_id, "Bulkhead" );

Parameters

[in]	part_id	FEA Part ID
[in]	name	New name for the FEA Part

SetFeaStructName()

void SetFeaStructName	(	const string &in	geom_id,
		int	fea_struct_ind,
		const string &in	name
	)

Set the name of an FEA Structure

//==== Add Pod Geometry ====//
string pod_id = AddGeom( "POD" );
 
//==== Add FeaStructure to Pod ====//
int struct_ind = AddFeaStruct( pod_id );
 
//==== Change the Structure Name ====// 
SetFeaStructName( pod_id, struct_ind, "Example_Struct" );
 
parm_container_id = FindContainer( "Example_Struct", struct_ind );
 
display_id = string("New Structure Parm Container ID: ") + parm_container_id + string("\n");
 
Print( display_id );

Parameters

[in]	geom_id	Parent Geom ID
[in]	fea_struct_ind	FEA Structure index
[in]	name	new name for the FEA Structure