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> Advice
Using joints: Loadcase properties
Using Joints: Mesh
| Geometric
attributes | Material
attributes | Spring
stiffnesses | Supports
| Loadcase properties
Since joints defined for the purpose of compression-only supports
or tension-only members will have different properties according to loading
conditions. This is naturally a change to the stiffness matrix and a nonlinear solution is therefore required. This is activated using the option:
TreeView > Loading tab >
(right click)
[Loadcase 1] > Controls > Nonlinear & transient > (check) Nonlinear
Superposition of load is not applicable in nonlinear
analyses.
If it is necessary to adopt a nonlinear lift-off approach, a full nonlinear loading procedure will need to be adopted since superposition of loads is not valid.
More about nonlinear
analyses
The use of joints simply to create hinge rotations along the edge of surface features,
or other linear behaviour should not require the use of a non-linear control
loadcase.
How do I model
lift off supports? (main page)
How
do I model tension only members? (main page)
How
do I model a hinged connection between shell meshed surfaces?
(main page)
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