F31

3D Displacement Based Bernoulli Beam

• Number of Nodes: 2

• Number of DoFs: 6 (Translation, Translation, Translation, Rotation, Rotation, Rotation)

• DoF Label: U1, U2, U3, UR1, UR2, UR3

References

1. 10.1016/0045-7949(95)00103-N

Syntax

element F31 (1) (2) (3) (4) (5) [6] [7]
# (1) int, unique element tag
# (2) int, node i
# (3) int, node j
# (4) int, section tag
# (5) int, orientation tag
# [6] int, number of integration points, default: 5
# [7] int, nonlinear geometry switch, default: false

Remarks

1. The Lobatto integration is used by default. The number of integration points ranges from 3 to 20.

2. Please check orientation for its definition.

3. To use the corotational formulation for nonlinearity, please attach a corotational formulation enabled orientation.

Output Type

This model supports the following additional history variables to be recorded.

variable label	physical meaning
BEAME	local element deformation
BEAMS	local element resistance

For example,

hdf5recorder (1) Element BEAME (2...)
hdf5recorder (1) Element BEAMS (2...)
# (1) int, unique recorder tag
# (2...) int, tags of elements to record