Truss properties
A truss is a one-dimensional member that carries axial force only. It has no bending stiffness and no torsional stiffness, so its section is described by just two numbers.
The tab is shown when the element type is set to Truss.
Parameters
| Parameter | Unit | Meaning |
|---|---|---|
A |
m² | Cross-sectional area |
E |
kN/m² | Young's modulus |
Units are shown for the m section unit. With mm selected, the area is read in mm².
Note
Enter both values in the unit currently selected above. The manager does not convert values that are already in the table when the unit is changed.
Profile
Selecting an IPE profile from the Profile list fills A for the chosen
section. E remains your input — the profile describes the geometry of the
section, not the steel it is made from.
Validation
Both parameters must be filled, along with the density. Pressing Apply & Save with one missing shows a warning naming the problem, and the material stays open so it can be corrected.
See Truss properties in the numgeo reference manual.