contact Module
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"pyNastran.bdf.cards.contact.BCBODY" [URL="#pyNastran.bdf.cards.contact.BCBODY",fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=10,height=0.25,shape=box,style="setlinewidth(0.5),filled",target="_top",tooltip="+--------+---------+--------+--------+----------+---------+---------+---------+---------+"];
"pyNastran.bdf.cards.base_card.BaseCard" -> "pyNastran.bdf.cards.contact.BCBODY" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.contact.BCONP" [URL="#pyNastran.bdf.cards.contact.BCONP",fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=10,height=0.25,shape=box,style="setlinewidth(0.5),filled",target="_top",tooltip="3D Contact Region Definition by Shell Elements (SOLs 101, 601 and 701)"];
"pyNastran.bdf.cards.base_card.BaseCard" -> "pyNastran.bdf.cards.contact.BCONP" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.contact.BCPARA" [URL="#pyNastran.bdf.cards.contact.BCPARA",fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=10,height=0.25,shape=box,style="setlinewidth(0.5),filled",target="_top",tooltip="Defines contact parameters used in SOL 600."];
"pyNastran.bdf.cards.base_card.BaseCard" -> "pyNastran.bdf.cards.contact.BCPARA" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.contact.BCRPARA" [URL="#pyNastran.bdf.cards.contact.BCRPARA",fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=10,height=0.25,shape=box,style="setlinewidth(0.5),filled",target="_top",tooltip="+---------+------+------+--------+------+-----+---+---+---+----+"];
"pyNastran.bdf.cards.base_card.BaseCard" -> "pyNastran.bdf.cards.contact.BCRPARA" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.contact.BCTADD" [URL="#pyNastran.bdf.cards.contact.BCTADD",fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=10,height=0.25,shape=box,style="setlinewidth(0.5),filled",target="_top",tooltip="+--------+------+----+-------+----+----+----+----+----+"];
"pyNastran.bdf.cards.base_card.BaseCard" -> "pyNastran.bdf.cards.contact.BCTADD" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.contact.BCTPARA" [URL="#pyNastran.bdf.cards.contact.BCTPARA",fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=10,height=0.25,shape=box,style="setlinewidth(0.5),filled",target="_top",tooltip="Defines parameters for a surface-to-surface contact region."];
"pyNastran.bdf.cards.base_card.BaseCard" -> "pyNastran.bdf.cards.contact.BCTPARA" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.contact.BCTPARM" [URL="#pyNastran.bdf.cards.contact.BCTPARM",fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=10,height=0.25,shape=box,style="setlinewidth(0.5),filled",target="_top",tooltip="Contact Parameters (SOLs 101, 103, 111, 112, and 401)."];
"pyNastran.bdf.cards.base_card.BaseCard" -> "pyNastran.bdf.cards.contact.BCTPARM" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.contact.BCTSET" [URL="#pyNastran.bdf.cards.contact.BCTSET",fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=10,height=0.25,shape=box,style="setlinewidth(0.5),filled",target="_top",tooltip="3D Contact Set Definition (SOLs 101, 601 and 701 only)"];
"pyNastran.bdf.cards.base_card.BaseCard" -> "pyNastran.bdf.cards.contact.BCTSET" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.contact.BFRIC" [URL="#pyNastran.bdf.cards.contact.BFRIC",fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=10,height=0.25,shape=box,style="setlinewidth(0.5),filled",target="_top",tooltip="Slideline Contact Friction"];
"pyNastran.bdf.cards.base_card.BaseCard" -> "pyNastran.bdf.cards.contact.BFRIC" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.contact.BGADD" [URL="#pyNastran.bdf.cards.contact.BGADD",fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=10,height=0.25,shape=box,style="setlinewidth(0.5),filled",target="_top",tooltip="+-------+------+----+-------+----+----+----+----+----+"];
"pyNastran.bdf.cards.base_card.BaseCard" -> "pyNastran.bdf.cards.contact.BGADD" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.contact.BGSET" [URL="#pyNastran.bdf.cards.contact.BGSET",fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=10,height=0.25,shape=box,style="setlinewidth(0.5),filled",target="_top",tooltip="+-------+------+------+------+---------+----+------+------+----+"];
"pyNastran.bdf.cards.base_card.BaseCard" -> "pyNastran.bdf.cards.contact.BGSET" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.contact.BLSEG" [URL="#pyNastran.bdf.cards.contact.BLSEG",fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=10,height=0.25,shape=box,style="setlinewidth(0.5),filled",target="_top",tooltip="3D Contact Region Definition by Shell Elements (SOLs 101, 601 and 701)"];
"pyNastran.bdf.cards.base_card.BaseCard" -> "pyNastran.bdf.cards.contact.BLSEG" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.contact.BSURF" [URL="#pyNastran.bdf.cards.contact.BSURF",fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=10,height=0.25,shape=box,style="setlinewidth(0.5),filled",target="_top",tooltip="3D Contact Region Definition by Shell Elements (SOLs 101, 601 and 701)"];
"pyNastran.bdf.cards.base_card.BaseCard" -> "pyNastran.bdf.cards.contact.BSURF" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.contact.BSURFS" [URL="#pyNastran.bdf.cards.contact.BSURFS",fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=10,height=0.25,shape=box,style="setlinewidth(0.5),filled",target="_top",tooltip="Defines a 3D contact region by the faces of the CHEXA, CPENTA or CTETRA"];
"pyNastran.bdf.cards.base_card.BaseCard" -> "pyNastran.bdf.cards.contact.BSURFS" [arrowsize=0.5,style="setlinewidth(0.5)"];
}
Defines the following contact cards:
- nx contact:
BCONP
BLSEG
BCPARA
BCRPARA
BCTPARA
BCTADD
BCTSET
BSURF
BSURFS
BFRIC
- msc contact:
BCAUTOP (todo)
BCBDPRP (todo)
BCBMRAD (todo)
BCBODY (todo)
BCBODY1 (todo)
BCBZIER (todo)
BCGRID (todo)
BCHANGE (todo)
BCMATL (todo)
BCMOVE (todo)
BCNURB2 (todo)
BCONECT (todo)
BCONP (todo)
BCONPRG (todo)
BCONPRP (todo)
BCONUDS (todo)
BCPARA (todo)
BCPROP (todo)
BCRIGID (todo)
BCRGSRF (todo)
BCSCAP (todo)
BCSEG (todo)
BCTABLE (todo)
BCTABL1 (todo)
BCTRIM (todo)
BFRlC (todo)
BOUTPUT (todo)
BSURF
BWIDTH (todo)
DYPARAM,CONTACT (todo)
- glue:
BGADD
BGSET
- class pyNastran.bdf.cards.contact.BCBODY(contact_id: int, bsid: int, dim: str = '3D', behav: str = 'DEFORM', istype: int = 0, fric: int | float = 0, idispl: int = 0, comment='')[source]
Bases:
BaseCard1
2
3
4
5
6
7
8
9
BCBODY
BID
DIM
BEHAV
BSID
ISTYP
FRIC
IDSPL
CONTROL
NLOAD
ANGVEL
DCOS1
DCOS2
DCOS3
VELRB1
VELRB2
VELRB3
ADVANCE
SANGLE
COPTB
USER
CTYPE
ISMALL
ITYPE
IAUG
PENALT
AUGDIST
RIGID
CGID
NENT
— Rigid Body Name —
APPROV
A
N1
N2
N3
V1
V2
V3
RTEMP
G(temp)
Tempr
T(Tempr)
SINK
G(sink)
Tsink
T(Tsink)
GROW
GF1
GF2
GF3
TAB-GF1
TAB-GF2
TAB-GF3
HEAT
CFILM
TSINK
CHEAT
TBODY
HCV
HNC
ITYPE
BNC
EMISS
HBL
- classmethod add_card(card, comment='')[source]
Adds a BCBODY card from
BDF.add_card(...)- Parameters:
- cardBDFCard()
a BDFCard object
- commentstr; default=’’
a comment for the card
- BIDint (4,1)
Contact body identification number referenced by BCTABLE, BCHANGE, or BCMOVE. (Integer > 0; Required)
- DIMstr; default=’3D’
Dimension of body. DIM=2D planar body in x-y plane of the basic coordinate system,
composed of 2D elements or curves.
- DIM=3D any 3D body composed of rigid surfaces, shell elements or solid
elements.
- BEHAV (4,8)
Behavior of curve or surface (Character; Default = DEFORM) DEFORM body is deformable, RIGID body is rigid, SYMM body is a symmetry body, ACOUS indicates an acoustic body, WORK indicates body is a workpiece, HEAT indicates body is a heat-rigid body. See Remark 3. for Rigid Bodies..
- BSIDint
Identification number of a BSURF, BCBOX, BCPROP or BCMATL entry if BEHAV=DEFORM. (Integer > 0)
- ISTYPint (4,3)
Check of contact conditions. (Integer > 0; Default = 0)
- ISTYPint
is not supported in segment-to-segment contact. For a deformable body: =0 symmetric penetration, double sided contact. =1 unsymmetric penetration, single sided contact. (Integer > 0) =2 double-sided contact with automatic optimization of contact constraint
equations (this option is known as “optimized contact”). Notes: single-sided contact (ISTYP=1) with the contact bodies arranged properly using the contact table frequently runs much faster than ISTYP=2. For a rigid body:
=0 no symmetry condition on rigid body. =1 rigid body is a symmetry plane.
- FRICint/float (6,7)
Friction coefficient. (Real > 0 or integer; Default = 0) If the value is an integer it represents the ID of a TABL3Di.
- IDSPLint (4,5)
Set IDSPL=1 to activate the SPLINE (analytical contact) option for a deformable body and for a rigid contact surface. Set it to zero or leave blank to not have analytical contact. (Integer; Default = 0)
- NLOADint or None
Enter a positive number if “load controlled” and rotations are allowed (Integer). The positive number is the grid number where the moments or rotations are applied. The rotations are specified using SPCD at grid ID NLOAD and can be specified using dof’s 1-3 (for rotation about x, y, z respectively), or by dof’s 4-6 (for rotation about x, y, z respectively). Note: This rotation takes the position of the grid point defined in CGID field as the center of rotation.
- ANGVELint/float; default=0.0
Angular velocity or angular position about local axis through center of rotation. If the value is an integer it represents the ID of a TABLED1, TABLED2 or TABL3D, i.e., a time-dependent or multi-dimensional table; however, no log scales, only linear scales. (Real or Integer; Default = 0.0)
- DCOSiint/float; default=0.0
Components of direction cosine of local axis if ANGVEL is nonzero. If the value is an integer, it represents the ID of a TABLED1, TABLED2 or TABL3D, i.e., a time-dependent or multi-dimensional table; however, no log scales, only linear scales. (Real or Integer; Default=0.0) In 2D contact only DCOS3 is used and the Default is 1.0.
- VELRBiint/float; default=0.0
Translation velocity or final position (depending on the value of CONTROL) of rigid body at the grid point defined in CGID filed. For velocity control only, if the value is an integer, it represents the ID of TABLED1, TABLED2 or TABL3D, i.e., a time-dependent or multi-dimensional table; however, no log scales, only linear scales. Only VELRB1 and VELRB2 are used in 2D contact. (Real or Integer; Default = 0.0)
- type = 'BCBODY'
- class pyNastran.bdf.cards.contact.BCONP(contact_id, slave, master, sfac, friction_id, ptype, cid, comment='')[source]
Bases:
BaseCard3D Contact Region Definition by Shell Elements (SOLs 101, 601 and 701)
Defines a 3D contact region by shell element IDs.
1
2
3
4
5
6
7
8
9
BCONP
ID
SLAVE
MASTER
SFAC
FRICID
PTYPE
CID
BCONP
95
10
15
1.0
33
1
- classmethod add_card(card: BDFCard, comment: str = '')[source]
Adds a BCONP card from
BDF.add_card(...)- Parameters:
- cardBDFCard()
a BDFCard object
- commentstr; default=’’
a comment for the card
- type = 'BCONP'
- class pyNastran.bdf.cards.contact.BCPARA(csid, params, comment='')[source]
Bases:
BaseCardDefines contact parameters used in SOL 600.
1
2
3
4
5
6
7
8
BCPARA
CSID
Param1
Value1
Param2
Value2
Param3
Value3
Param4
Value4
Param5
Value5
etc.
BCPARA
NBODIES
4
BIAS
0.5
Creates a BCPARA card
- Parameters:
- csidint
ID is not used and should be set to zero. Only one BCPARA should be entered and it applies to all subcases.
- csidint
Contact set ID. Parameters defined in this command apply to contact set CSID defined by a BCTSET entry. (Integer > 0)
- paramsdict[key]int/float
the optional parameters
- commentstr; default=’’
a comment for the card
- classmethod add_card(card, comment='')[source]
Adds a BCPARA card from
BDF.add_card(...)- Parameters:
- cardBDFCard()
a BDFCard object
- commentstr; default=’’
a comment for the card
- csid
Contact set ID. Parameters defined in this command apply to contact set CSID defined by a BCTSET entry. (Integer > 0)
- type = 'BCPARA'
- class pyNastran.bdf.cards.contact.BCRPARA(crid: int, offset: float | None = None, surf: str = 'TOP', Type: str = 'FLEX', grid_point: int = 0, comment: str = '')[source]
Bases:
BaseCard1
2
3
4
5
6
7
8
9
10
BCRPARA
CRID
SURF
OFFSET
TYPE
GP
Creates a BCRPARA card
- Parameters:
- cridint
CRID Contact region ID.
- offsetfloat; default=None
Offset distance for the contact region (Real > 0.0). None : OFFSET value in BCTPARA entry
- surfstr; default=’TOP’
SURF Indicates the contact side. See Remark 1. {‘TOP’, ‘BOT’; )
- Typestr; default=’FLEX’
Indicates whether a contact region is a rigid surface if it is used as a target region. {‘RIGID’, ‘FLEX’}. This is not supported for SOL 101.
- grid_pointint; default=0
Control grid point for a target contact region with TYPE=RIGID or when the rigid-target algorithm is used. The grid point may be used to control the motion of a rigid surface. (Integer > 0). This is not supported for SOL 101.
- commentstr; default=’’
a comment for the card
- Type
Indicates whether a contact region is a rigid surface if it is used as a target region. See Remarks 3 and 4. (Character = “RIGID” or “FLEX”, Default = “FLEX”). This is not supported for SOL 101.
- classmethod add_card(card: BDFCard, comment: str = '')[source]
Adds a BCRPARA card from
BDF.add_card(...)- Parameters:
- cardBDFCard()
a BDFCard object
- commentstr; default=’’
a comment for the card
- crid
CRID Contact region ID. (Integer > 0)
- grid_point
Control grid point for a target contact region with TYPE=RIGID or when the rigid-target algorithm is used. The grid point may be used to control the motion of a rigid surface. (Integer > 0) This is not supported for SOL 101.
- offset
Offset distance for the contact region. See Remark 2. (Real > 0.0, Default =OFFSET value in BCTPARA entry)
- surf
SURF Indicates the contact side. See Remark 1. (Character = “TOP” or “BOT”; Default = “TOP”)
- type = 'BCRPARA'
- class pyNastran.bdf.cards.contact.BCTADD(csid, contact_sets, comment='')[source]
Bases:
BaseCard1
2
3
4
5
6
7
8
9
BCTADD
CSID
SI
S2
S3
S4
S5
S6
S7
S8
S9
etc.
Remarks: 1. To include several contact sets defined via BCTSET entries in a model,
BCTADD must be used to combine the contact sets. CSID in BCTADD is then selected with the Case Control command BCSET.
Si must be unique and may not be the identification of this or any other BCTADD entry.
- classmethod add_card(card, comment='')[source]
Adds a BCTADD card from
BDF.add_card(...)- Parameters:
- cardBDFCard()
a BDFCard object
- commentstr; default=’’
a comment for the card
- contact_sets
Identification numbers of contact sets defined via BCTSET entries. (Integer > 0)
- csid
Contact set identification number. (Integer > 0)
- type = 'BCTADD'
- class pyNastran.bdf.cards.contact.BCTPARA(csid, params, comment='')[source]
Bases:
BaseCardDefines parameters for a surface-to-surface contact region.
1
2
3
4
5
6
7
8
BCTPARA
CSID
Param1
Value1
Param2
Value2
Param3
Value3
Param4
Value4
Param5
Value5
etc.
BCTPARA
1
TYPE
0
NSIDE
2
SEGNORM
-1
CSTIFF
1
OFFSET
0.015
Creates a BCTPARA card
- Parameters:
- csidint
Contact set ID. Parameters defined in this command apply to contact set CSID defined by a BCTSET entry. (Integer > 0)
- paramsdict[key]value
the optional parameters
- commentstr; default=’’
a comment for the card
- classmethod add_card(card, comment='')[source]
Adds a BCTPARA card from
BDF.add_card(...)- Parameters:
- cardBDFCard()
a BDFCard object
- commentstr; default=’’
a comment for the card
- csid
Contact set ID. Parameters defined in this command apply to contact set CSID defined by a BCTSET entry. (Integer > 0)
- type = 'BCTPARA'
- class pyNastran.bdf.cards.contact.BCTPARM(csid, params, comment='')[source]
Bases:
BaseCardContact Parameters (SOLs 101, 103, 111, 112, and 401). Control parameters for the contact algorithm.
1
2
3
4
5
6
7
8
BCTPARM
CSID
Param1
Value1
Param2
Value2
Param3
Value3
Param4
Value4
Param5
Value5
etc.
BCTPARM
1
PENN
10.0
PENT
0.5
CTOL
0.001
SHLTHK
1
Creates a BCTPARM card
- Parameters:
- csidint
Contact set ID. Parameters defined in this command apply to contact set CSID defined by a BCTSET entry. (Integer > 0)
- paramsdict[key]value
the optional parameters
- commentstr; default=’’
a comment for the card
- classmethod add_card(card, comment='')[source]
Adds a BCTPARM card from
BDF.add_card(...)- Parameters:
- cardBDFCard()
a BDFCard object
- commentstr; default=’’
a comment for the card
- csid
Contact set ID. Parameters defined in this command apply to contact set CSID defined by a BCTSET entry. (Integer > 0)
- type = 'BCTPARM'
- class pyNastran.bdf.cards.contact.BCTSET(csid, sids, tids, frictions, min_distances, max_distances, comment='', sol=101)[source]
Bases:
BaseCard3D Contact Set Definition (SOLs 101, 601 and 701 only) Defines contact pairs of a 3D contact set.
1
2
3
4
5
6
7
BCTSET
CSID
SID1
TID1
FRIC1
MIND1
MAXD1
SID2
TID2
FRIC2
MIND2
MAXD2
etc.
- csid
CSID Contact set identification number. (Integer > 0)
- frictions
FRICi Static coefficient of friction for contact pair i. (Real; Default=0.0)
- max_distances
MAXDi Maximum search distance for contact. (Real) (Sol 101 only)
- min_distances
MINDi Minimum search distance for contact. (Real) (Sol 101 only)
- sids
SIDi Source region (contactor) identification number for contact pair i. (Integer > 0)
- tids
TIDi Target region identification number for contact pair i. (Integer > 0)
- type = 'BCTSET'
- class pyNastran.bdf.cards.contact.BFRIC(friction_id: int, mu1: float, fstiff=None, comment='')[source]
Bases:
BaseCardSlideline Contact Friction Defines frictional properties between two bodies in contact.
1
2
3
4
5
BFRIC
FID
FSTIF
MU1
Creates a BFRIC card, which defines a frictional contact.
- Parameters:
- friction_idint
Friction identification number.
- mu1float
Coefficient of static friction.
- fstifffloat; default=None
Frictional stiffness in stick. See Remarks 2 and 3 Default=automatically selected by the program.
- type = 'BFRIC'
- class pyNastran.bdf.cards.contact.BGADD(glue_id, contact_sets, comment='')[source]
Bases:
BaseCard1
2
3
4
5
6
7
8
9
BGADD
GSID
SI
S2
S3
S4
S5
S6
S7
S8
S9
etc.
- classmethod add_card(card, comment='')[source]
Adds a BGADD card from
BDF.add_card(...)- Parameters:
- cardBDFCard()
a BDFCard object
- commentstr; default=’’
a comment for the card
- contact_sets
Identification numbers of contact sets defined via BCTSET entries. (Integer > 0)
- glue_id
Glue identification number. (Integer > 0)
- type = 'BGADD'
- class pyNastran.bdf.cards.contact.BGSET(glue_id, sids, tids, sdists, exts, comment='', sol=101)[source]
Bases:
BaseCard1
2
3
4
5
6
7
8
9
BGSET
GSID
SID1
TID1
SDIST1
EXT1
SID2
TID2
SDIST2
EXT2
- exts
EXTi Extension factor for target region (SOLs 402 and 601 only).
- glue_id
GSID Glue set identification number. (Integer > 0)
- sdists
SDISTi Search distance for glue regions (Real); (Default=10.0)
- sids
SIDi Source region (contactor) identification number for contact pair i. (Integer > 0)
- tids
TIDi Target region identification number for contact pair i. (Integer > 0)
- type = 'BGSET'
- class pyNastran.bdf.cards.contact.BLSEG(line_id, nodes, comment='')[source]
Bases:
BaseCard3D Contact Region Definition by Shell Elements (SOLs 101, 601 and 701)
Defines a 3D contact region by shell element IDs.
+=======+====+====+======+====+====+=====+====+====+ | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | +——-+—-+—-+——+—-+—-+—–+—-+—-+ | BLSEG | ID | G1 | G2 | G3 | G4 | G5 | G6 | G7 | +——-+—-+—-+——+—-+—-+—–+—-+—-+ | BLSEG | ID | G1 | THRU | G2 | BY | INC | | | +——-+—-+—-+——+—-+—-+—–+—-+—-+
- classmethod add_card(card, comment='')[source]
Adds a BLSEG card from
BDF.add_card(...)- Parameters:
- cardBDFCard()
a BDFCard object
- commentstr; default=’’
a comment for the card
- property node_ids
returns nodeIDs for repr functions
- type = 'BLSEG'
- class pyNastran.bdf.cards.contact.BSURF(sid, eids, comment='')[source]
Bases:
BaseCard3D Contact Region Definition by Shell Elements (SOLs 101, 601 and 701)
Defines a 3D contact region by shell element IDs.
1
2
3
4
5
6
7
8
9
BSURF
ID
EID1
EID2
EID3
EID4
EID5
EID6
EID7
EID8
EID9
EID10
etc.
BSURF
ID
EID1
THRU
EID2
BY
INC
EID8
EID9
EID10
EID11
etc.
EID8
THRU
EID9
BY
INC
BSURF
15
5
THRU
21
BY
4
27
30
32
33
35
THRU
44
67
68
70
85
92
- classmethod add_card(card, comment='')[source]
Adds a BSURF card from
BDF.add_card(...)- Parameters:
- cardBDFCard()
a BDFCard object
- commentstr; default=’’
a comment for the card
- eids
Element identification numbers of shell elements. (Integer > 0)
- sid
Set identification number. (Unique Integer > 0)
- type = 'BSURF'
- class pyNastran.bdf.cards.contact.BSURFS(bsurfs_id, eids, g1s, g2s, g3s, comment='')[source]
Bases:
BaseCardDefines a 3D contact region by the faces of the CHEXA, CPENTA or CTETRA elements.
Notes
The continuation field is optional.
BSURFS is a collection of one or more element faces on solid elements. BSURFS defines a contact region which may act as a contact source (contactor) or target.
The ID must be unique with respect to all other BSURFS, BSURF, and BCPROP entries.
- classmethod add_card(card, comment='')[source]
Adds a BSURFS card from
BDF.add_card(...)- Parameters:
- cardBDFCard()
a BDFCard object
- commentstr; default=’’
a comment for the card
- eids
Element identification numbers of solid elements. (Integer > 0)
- g1s
Identification numbers of 3 corner grid points on the face (triangular or quadrilateral) of the solid element. (Integer > 0)
- id
Identification number of a contact region. See Remarks 2 and 3. (Integer > 0)
- type = 'BSURFS'