*SECTION_BEAM
LS-DYNA Input Interface KeywordDefines finite element property of beams, trusses, and discrete beams.
Format
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) |
---|---|---|---|---|---|---|---|
*SECTION_BEAM | |||||||
sec_ID | ELFORM | NIP | CST |
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) |
---|---|---|---|---|---|---|---|
TS1 |
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) |
---|---|---|---|---|---|---|---|
A | IYY | IZZ | IXX |
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) |
---|---|---|---|---|---|---|---|
SECTION_08 | L1 |
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) |
---|---|---|---|---|---|---|---|
SECTION_11 | L2 | L1 |
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) |
---|---|---|---|---|---|---|---|
A |
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) |
---|---|---|---|---|---|---|---|
VOL | INERTIA | CID | AREA |
Definition
Field | Contents | SI Unit Example |
---|---|---|
sec_ID | Section identifier. (Integer) |
|
ELFORM | Beam element formulation.
(Integer) |
|
NIP | Number of integration points (subsections).
|
|
CST | Cross section type.
|
|
TS1 | Cross section dimension.
(Real) |
|
A | Section area. (Real) |
|
IYY, IZZ | Area moment of inertia for bending. (Real) |
|
IXX | Area moment of inertia for torsion. (Real) |
|
VOL | Discrete beam volume. (Real) |
|
INERTIA | Discrete mass beam inertia. (Real) |
|
CID | Coordinate system identifier for DOF directions of the discrete
beams. (Integer) |
|
AREA | Section area of cable elements that use
*MAT_071. (Real) |
|
L1, L2 | Dimension of the predefined section. (Real) |
Comments
- Converted into /PROP/TYPE3 (BEAM), /PROP/TYPE18 (INT_BEAM), /PROP/TYPE23 (SPR_MAT), or /PROP/TYPE2 (TRUSS).
- The option “_TITLE” can be added to the end of this keyword. When “_TITLE” is included, an extra 80 characters long line is added after the keyword input line which allows an entity title to be defined.