Figure 1 Property Beam dialog box
•Area: Defines the cross-section area of beam element
•Torsional Inertia: Defines the moment of inertia on the longitudinal direction
•Iyy: Defines the moment of inertia on the y direction
•Izz: Defines the moment of inertia on the z direction
•Iyz: Defines the moment of inertia on the yz plane
•Asy, Asz: Define shear area factor. This factor is used for considering shear transformation by shear force which cause that neutral axis is not perpendicular to cross-section. This value is 5/6 in the case of rectangle and 0.9 in the case of circle cross-section.
•Cross Section Type: Beam cross section type can be selected. RecurDyn supports the circle, ellipse, rectangle, hollow circle, hollow rectangle, I beam and T beam cross sections. The cross section’s geometric characteristics can be defined.
•Stress Recovery Points: Defines the y and z locations in element coordinates relative to the beam center line for stress data recovery. If the check option turns off, the points are not updated when recalculating.
•Update Cross Section Property Automatically: If this option is checked, property values are updated automatically as geometry data change without clicking Recalculate.
The beam library calculates automatically the mass and area moment of inertia which is determined by the cross section area. For more information, click here.