Prismatic truss
Nodes
The element has 2 nodes with global numbers N1 and N2. In the figure, N1 < N2 is assumed.
Each node has displacements $[u,v,w]$ and temperature $[T].$
Local coordinate system
The axis $\xi$ coincides with the element’s edge in the direction from N1 to N2, therefore, its orientation depends on the particular mesh numbering.
Geometrical characteristics
| $A$ | Cross-sectional area $[\text{m}^2].$ |
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