User Area > Advice
Typical warning message from LUSAS Solver text output file
(*.OUT):
***WARNING*** CURRENT
INCREMENT HAS FAILED TO CONVERGE (NONLCT PROCESSOR)
This message is generally no cause for concern. It is often
followed by the message:
***WARNING***
STEP REDUCTION IN PROGRESS (NONLCT PROCESSOR)
Frequent causes
and remedies of convergence problems
Obtaining a converged solution in a nonlinear analysis is
dependent on appropriate data in both the nonlinear control settings
as well as the model definition itself. The user area section "how
to perform a nonlinear analysis" gives more details on many
aspects involved in nonlinear analyses.
Search in the online help for "Nonlinear Solution
Procedures" for general nonlinear information and for
"Analysis CONTROL" to display specific information on the
meaning of the fields in the nonlinear control form. The dialog help
is also of use. Select:
Load case properties> Nonlinear &
Transient> Nonlinear> Help...
- this is context sensitive and
should be tried on each of the nonlinear dialog forms.
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