CBAR (Simple Beam Element Connection)

Description

The CBAR entry defines a simple beam element.

Format

1	2	3	4	5	6	7	8	9	10
CBAR	EID	PID	GA	GB	X1	X2	X3

Example

CBAR

10

100

101

102

0.0

0.0

1.0

Alternate Format and Example

1	2	3	4	5	6	7	8	9	10
CBAR	EID	PID	GA	GB	G0/X1	X2	X3

CBAR

2

39

7

6

105

Field	Definition	Type	Default
EID	Element identification number.	Integer > 0	Required
PID	Property identification number of a PBAR entry.	Integer > 0	Required
GA, GB	Grid point identification numbers of connection points.	Integer > 0	Required
X1, X2, X3	Components of vector , from GA, in the displacement coordinate system at GA (see Figure 1).	Real or blank
G0	Grid point identification number to optionally supply X1, X2, and X3. Direction of orientation vector is GA to G0.	Integer or blank

Remarks

1. Element identification numbers must be unique with respect to all other element identification numbers.
2. If field 6 is an integer, then G0 is used. If field 6 is blank or real, then X1, X2, X3 are used.
3. G0 cannot be located at GA or GB.

Figure 1: CBAR element geometry

Figure 2: CBAR element internal forces and moments (x-y plane)

Figure 3: CBAR element internal forces and moments (x-z plane)