CMBEAMM

Bulk Data Entry

CMBEAMM – Beam Element for MBD based on Markers

Description

Defines a beam element for multi-body dynamic solution sequence without reference to a property entry based on markers.

Format

Field	Contents
EID	Unique element identification number. (Integer > 0)
MID	Material identification number. (Integer > 0)
M1	Marker identification number. (Integer > 0)
M2	Marker identification number. (Integer > 0)
L	Undeformed length along the X-axis of the beam. (Real)
A	Area of the beam cross-section. (Real)
I1	Area moment inertia in plane 1 about the neutral axis. No default (Real > 0.0)
I2	Area moment inertia in plane 2 about the neutral axis. No default (Real > 0.0)
J	Torsional constant. (Real > 0.0)
K1, K2	Area factor for shear. Default = 0.0 (Real)

1.	The X-axis of the markers M1 and M2 should always be along the axis of the beam.

2.	The moments of inertia are defined as follows:

cmbeam_eq

The beam coordinates must be aligned with the principal axes of the cross-section.

3.	The transverse shear stiffness in planes 1 and 2 are (K1)AG and (K2)AG, respectively. If a value of 0.0 is used for K1 and K2, the transverse shear flexibilities are set to 0.0 (K1 and K2 are interpreted as infinite).

4.	This card is represented as a bar element in HyperMesh.