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Related Incidents:

  • Incident 46436: various general questions on ETABS

What does it mean when numerical instability warnings are reported, but there is no joint at the location indicated?

Answer: Numerical instability is reported according to numerical formulation and the sequence in which equations are solved. The point indicated is not necessarily a discrete point at which instability occurs, but rather a location related to the assemblage of objects with significantly different stiffness.


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