...
Numerical
...
problems
...
or
...
stability
...
problems
...
may
...
arise
...
during
...
analysis.
...
If
...
so,
...
the
...
log
...
file
...
should
...
be
...
reviewed.
...
Information
...
may
...
be
...
retrieved
...
using
...
the
...
standard
...
solver,
...
available
...
through
...
Analyze
...
>
...
Set
...
Analysis
...
Options
...
>
...
Solver
...
Options.
...
Numerical
...
problems
...
should
...
be
...
fully
...
resolved
...
before
...
analysis
...
results
...
are
...
interpreted.
...
When Software encounters zero stiffness, a warning message will indicate that a small stiffness value has been assigned to allow numerical formulation to proceed. The model should still be checked to identify and remove the source of zero stiffness.
See Also
- Analysis Reference Manual (Frame Element > End Releases > Unstable End Releases, page 116)
- Numerical instability