Stiffness matrix equilibrium checks option. Equilibrium checks verify whether an unrestrained model can undergo simple rigid body motion without generating internal forces. There are six options:
- 0 - Do not perform any checks.
- 1 - Perform checks after stiffness matrix assembly before multipoint constraints are applied.
- 2 - Perform checks after multipoint constraints are applied before single point constraints are applied.
- 3 - Perform checks after single point constraints are applied before static condensation.
- 4 - Perform checks after static condensation before decomposition.
- 5 - Perform checks 1 - 4 above.
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