*SECTION INERTIA

Define inertia properties for meshed general beam sections.

This option must be used in conjunction with the BEAM GENERAL SECTION, SECTION=MESHED option to assign the beam section mass and inertia properties that result from the two-dimensional meshed cross-section generation procedure. The properties are written to the jobname.bsp file during the cross-section generation and are typically read into a subsequent beam analysis using the INCLUDE option.

The SECTION STIFFNESS and SECTION INERTIA options are mutually exclusive with the second and third data lines of the BEAM GENERAL SECTION option. See Meshed Beam Cross-Sections for details.

This page discusses:

There are no parameters associated with this option.
Data line

There are no parameters associated with this option.

Data line

First (and only) line

Total mass of the section per unit length, $(ρ A)$ .
Rotary inertia about the 1-axis of the section, ${(ρ I)}_{11}$ .
Rotary product of inertia, ${(ρ I)}_{12}$ .
Rotary inertia about the 2-axis of the section, ${(ρ I)}_{22}$ .
Local 1-coordinate of the center of mass, $x_{1 c m}$ .
Local 2-coordinate of the center of mass, $x_{2 c m}$ .