axisymmetric_shells
Module
digraph inheritance2d9a771f6b {
bgcolor=transparent;
rankdir=LR;
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"pyNastran.bdf.cards.base_card.BaseCard" [URL="../pyNastran.bdf.cards.base_card.html#pyNastran.bdf.cards.base_card.BaseCard",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 series of base methods for every card class"];
"pyNastran.bdf.cards.base_card.Element" [URL="../pyNastran.bdf.cards.base_card.html#pyNastran.bdf.cards.base_card.Element",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 the Element class"];
"pyNastran.bdf.cards.base_card.BaseCard" -> "pyNastran.bdf.cards.base_card.Element" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.elements.axisymmetric_shells.AxisymmetricQuad" [fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=10,height=0.25,shape=box,style="setlinewidth(0.5),filled"];
"pyNastran.bdf.cards.base_card.Element" -> "pyNastran.bdf.cards.elements.axisymmetric_shells.AxisymmetricQuad" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.elements.axisymmetric_shells.AxisymmetricTri" [fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=10,height=0.25,shape=box,style="setlinewidth(0.5),filled"];
"pyNastran.bdf.cards.base_card.Element" -> "pyNastran.bdf.cards.elements.axisymmetric_shells.AxisymmetricTri" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.elements.axisymmetric_shells.CQUADX" [URL="#pyNastran.bdf.cards.elements.axisymmetric_shells.CQUADX",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 an axisymmetric quadrilateral element with up to nine grid"];
"pyNastran.bdf.cards.elements.axisymmetric_shells.AxisymmetricQuad" -> "pyNastran.bdf.cards.elements.axisymmetric_shells.CQUADX" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.elements.axisymmetric_shells.CQUADX4" [URL="#pyNastran.bdf.cards.elements.axisymmetric_shells.CQUADX4",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 an isoparametric and axisymmetric quadrilateral cross-section"];
"pyNastran.bdf.cards.elements.axisymmetric_shells.AxisymmetricQuad" -> "pyNastran.bdf.cards.elements.axisymmetric_shells.CQUADX4" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.elements.axisymmetric_shells.CQUADX8" [URL="#pyNastran.bdf.cards.elements.axisymmetric_shells.CQUADX8",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 an isoparametric and axisymmetric quadrilateral cross-section"];
"pyNastran.bdf.cards.elements.axisymmetric_shells.AxisymmetricQuad" -> "pyNastran.bdf.cards.elements.axisymmetric_shells.CQUADX8" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.elements.axisymmetric_shells.CTRAX3" [URL="#pyNastran.bdf.cards.elements.axisymmetric_shells.CTRAX3",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.elements.axisymmetric_shells.AxisymmetricTri" -> "pyNastran.bdf.cards.elements.axisymmetric_shells.CTRAX3" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.elements.axisymmetric_shells.CTRAX6" [URL="#pyNastran.bdf.cards.elements.axisymmetric_shells.CTRAX6",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.elements.axisymmetric_shells.AxisymmetricTri" -> "pyNastran.bdf.cards.elements.axisymmetric_shells.CTRAX6" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.elements.axisymmetric_shells.CTRIAX" [URL="#pyNastran.bdf.cards.elements.axisymmetric_shells.CTRIAX",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.elements.axisymmetric_shells.AxisymmetricTri" -> "pyNastran.bdf.cards.elements.axisymmetric_shells.CTRIAX" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.elements.axisymmetric_shells.CTRIAX6" [URL="#pyNastran.bdf.cards.elements.axisymmetric_shells.CTRIAX6",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.elements.shell.TriShell" -> "pyNastran.bdf.cards.elements.axisymmetric_shells.CTRIAX6" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.elements.shell.ShellElement" [fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=10,height=0.25,shape=box,style="setlinewidth(0.5),filled"];
"pyNastran.bdf.cards.base_card.Element" -> "pyNastran.bdf.cards.elements.shell.ShellElement" [arrowsize=0.5,style="setlinewidth(0.5)"];
"pyNastran.bdf.cards.elements.shell.TriShell" [fillcolor=white,fontname="Vera Sans, DejaVu Sans, Liberation Sans, Arial, Helvetica, sans",fontsize=10,height=0.25,shape=box,style="setlinewidth(0.5),filled"];
"pyNastran.bdf.cards.elements.shell.ShellElement" -> "pyNastran.bdf.cards.elements.shell.TriShell" [arrowsize=0.5,style="setlinewidth(0.5)"];
}
- All axisymmetric shell elements are defined in this file. This includes:
CTRAX3
CTRAX6
CTRIAX
CTRIAX6
CQUADX
CQUADX4
CQUADX8
All tris are TriShell, ShellElement, and Element objects. All quads are QuadShell, ShellElement, and Element objects.
- class pyNastran.bdf.cards.elements.axisymmetric_shells.CQUADX(eid, pid, nids, theta_mcid=0.0, comment='')[source]
Bases:
AxisymmetricQuad
Defines an axisymmetric quadrilateral element with up to nine grid points for use in fully nonlinear (i.e., large strain and large rotations) analysis or a linear harmonic or rotordynamic analysis. The element has between four and eight grid points
1
2
3
4
5
6
7
8
9
CQUADX
EID
PID
N1
N2
N3
N4
G5
G6
G7
G8
G9
THETA/MCID
Theta/Mcid is MSC only!
dummy init
- classmethod add_card(card, comment='')[source]
Adds a CQUADX card from
BDF.add_card(...)
- Parameters:
- cardBDFCard()
a BDFCard object
- commentstr; default=’’
a comment for the card
- cross_reference(model: BDF) None [source]
Cross links the card so referenced cards can be extracted directly
- Parameters:
- modelBDF()
the BDF object
- eid
Element ID
- property node_ids
- repr_fields()[source]
Gets the fields in their simplified form
- Returns:
- fieldslist[varies]
the fields that define the card
- safe_cross_reference(model: BDF, xref_errors)[source]
Cross links the card so referenced cards can be extracted directly
- Parameters:
- modelBDF()
the BDF object
- type = 'CQUADX'
- class pyNastran.bdf.cards.elements.axisymmetric_shells.CQUADX4(eid, pid, nids, theta=0.0, comment='')[source]
Bases:
AxisymmetricQuad
Defines an isoparametric and axisymmetric quadrilateral cross-section ring element for use in linear and fully nonlinear (i.e., large strain and large rotations) hyperelastic analysis.
1
2
3
4
5
6
7
8
CQUADX4
EID
PID
N1
N2
N3
N4
THETA
CQUADX4 is an NX card only!
dummy init
- classmethod add_card(card, comment='')[source]
Adds a CQUADX4 card from
BDF.add_card(...)
- Parameters:
- cardBDFCard()
a BDFCard object
- commentstr; default=’’
a comment for the card
- cross_reference(model: BDF) None [source]
Cross links the card so referenced cards can be extracted directly
- Parameters:
- modelBDF()
the BDF object
- eid
Element ID
- property node_ids
- repr_fields()[source]
Gets the fields in their simplified form
- Returns:
- fieldslist[varies]
the fields that define the card
- safe_cross_reference(model: BDF, xref_errors)[source]
Cross links the card so referenced cards can be extracted directly
- Parameters:
- modelBDF()
the BDF object
- type = 'CQUADX4'
- class pyNastran.bdf.cards.elements.axisymmetric_shells.CQUADX8(eid, pid, nids, theta=0.0, comment='')[source]
Bases:
AxisymmetricQuad
Defines an isoparametric and axisymmetric quadrilateral cross-section ring element with midside nodes for use in linear and fully nonlinear (i.e., large strain and large rotations) hyperelastic analysis.
1
2
3
4
5
6
7
8
9
CQUADX8
EID
PID
N1
N2
N3
N4
G5
G6
G7
G8
THETA
CQUADX8 is an NX card only!
dummy init
- classmethod add_card(card, comment='')[source]
Adds a CQUADX8 card from
BDF.add_card(...)
- Parameters:
- cardBDFCard()
a BDFCard object
- commentstr; default=’’
a comment for the card
- cross_reference(model: BDF) None [source]
Cross links the card so referenced cards can be extracted directly
- Parameters:
- modelBDF()
the BDF object
- eid
Element ID
- property node_ids
- repr_fields()[source]
Gets the fields in their simplified form
- Returns:
- fieldslist[varies]
the fields that define the card
- safe_cross_reference(model: BDF, xref_errors)[source]
Cross links the card so referenced cards can be extracted directly
- Parameters:
- modelBDF()
the BDF object
- type = 'CQUADX8'
- class pyNastran.bdf.cards.elements.axisymmetric_shells.CTRAX3(eid, pid, nids, theta=0.0, comment='')[source]
Bases:
AxisymmetricTri
1
2
3
4
5
6
7
CTRAX3
EID
PID
N1
N2
N3
THETA
CTRAX3 is NX only!
dummy init
- AreaCentroidNormal()[source]
Returns area, centroid, normal as it’s more efficient to do them together
- classmethod add_card(card, comment='')[source]
Adds a CTRAX3 card from
BDF.add_card(...)
- Parameters:
- cardBDFCard()
a BDFCard object
- commentstr; default=’’
a comment for the card
- cross_reference(model: BDF) None [source]
Cross links the card so referenced cards can be extracted directly
- Parameters:
- modelBDF()
the BDF object
- eid
Element ID
- property node_ids
- repr_fields()[source]
Gets the fields in their simplified form
- Returns:
- fieldslist[varies]
the fields that define the card
- safe_cross_reference(model: BDF, xref_errors)[source]
Cross links the card so referenced cards can be extracted directly
- Parameters:
- modelBDF()
the BDF object
- type = 'CTRAX3'
- class pyNastran.bdf.cards.elements.axisymmetric_shells.CTRAX6(eid, pid, nids, theta=0.0, comment='')[source]
Bases:
AxisymmetricTri
1
2
3
4
5
6
7
8
9
CTRAX6
EID
PID
N1
N2
N3
N4
N5
N6
THETA
Theta/Mcid is NX only!
dummy init
- AreaCentroidNormal()[source]
Returns area, centroid, normal as it’s more efficient to do them together
- classmethod add_card(card, comment='')[source]
Adds a CTRAX6 card from
BDF.add_card(...)
- Parameters:
- cardBDFCard()
a BDFCard object
- commentstr; default=’’
a comment for the card
- cross_reference(model: BDF) None [source]
Cross links the card so referenced cards can be extracted directly
- Parameters:
- modelBDF()
the BDF object
- eid
Element ID
- property node_ids
- repr_fields()[source]
Gets the fields in their simplified form
- Returns:
- fieldslist[varies]
the fields that define the card
- safe_cross_reference(model: BDF, xref_errors)[source]
Cross links the card so referenced cards can be extracted directly
- Parameters:
- modelBDF()
the BDF object
- type = 'CTRAX6'
- class pyNastran.bdf.cards.elements.axisymmetric_shells.CTRIAX(eid, pid, nids, theta_mcid=0.0, comment='')[source]
Bases:
AxisymmetricTri
1
2
3
4
5
6
7
8
9
CTRIAX
EID
PID
N1
N2
N3
N4
N5
N6
THETA/MCID
Theta/Mcid is MSC only!
dummy init
- AreaCentroidNormal()[source]
Returns area, centroid, normal as it’s more efficient to do them together
- classmethod add_card(card, comment='')[source]
Adds a CTRIAX card from
BDF.add_card(...)
- Parameters:
- cardBDFCard()
a BDFCard object
- commentstr; default=’’
a comment for the card
- cross_reference(model: BDF) None [source]
Cross links the card so referenced cards can be extracted directly
- Parameters:
- modelBDF()
the BDF object
- eid
Element ID
- property node_ids
- repr_fields()[source]
Gets the fields in their simplified form
- Returns:
- fieldslist[varies]
the fields that define the card
- safe_cross_reference(model: BDF, xref_errors)[source]
Cross links the card so referenced cards can be extracted directly
- Parameters:
- modelBDF()
the BDF object
- type = 'CTRIAX'
- class pyNastran.bdf.cards.elements.axisymmetric_shells.CTRIAX6(eid, mid, nids, theta=0.0, comment='')[source]
Bases:
TriShell
1
2
3
4 | 5
6
7
8
9
CTRIAX6
EID
MID
N1 | N2
N3
G4
G5
G6
THETA
NX/MSC : Nodes are defined in a non-standard way:
5 / 6 4 / 1----2----3
dummy init
- AreaCentroidNormal()[source]
Returns area, centroid, normal as it’s more efficient to do them together
- Normal()[source]
Get the normal vector, \(n\).
5
/
6 4
/
1—-2—-3
\[n = \frac{(n_0-n_1) \times (n_0-n_2)} {\lvert (n_0-n_1) \times (n_0-n_2) \lvert}\]
- classmethod add_card(card, comment='')[source]
Adds a CTRIAX6 card from
BDF.add_card(...)
- Parameters:
- cardBDFCard()
a BDFCard object
- commentstr; default=’’
a comment for the card
- cross_reference(model: BDF) None [source]
Cross links the card so referenced cards can be extracted directly
- Parameters:
- modelBDF()
the BDF object
- eid
Element ID
- property node_ids
5
/ 6 4
/ 1—-2—-3
- pid = -53
- repr_fields()[source]
Gets the fields in their simplified form
- Returns:
- fieldslist[varies]
the fields that define the card
- safe_cross_reference(model: BDF, xref_errors)[source]
Cross links the card so referenced cards can be extracted directly
- Parameters:
- modelBDF()
the BDF object
- theta
theta
- type = 'CTRIAX6'