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Subject: Restart static linear
Author: Sickles Willard willardsickles@
Date: 2001-01-31 12:34:00

I recently had two static, linear analyzes where after
running the first load step, I changed only the
displacement constraints on several nodes and
restarted the analysis. I did this 4 and 12 times
respectively on the two problems, each time reviewing
results in the general postprocessor before returning
to solution, creating the next numerical load step and
running a solution. Each time the results were added
to the existing rst file. All I changed between load
steps was nodal constraints and how I viewed the
display (such as element edges on or off, boundary
condition symbols on or off...).

Then, on the next solution I got the following
warnings:

*** WARNING ***
Changing element real constants (R commands) between
load steps is generally a non-standard use of the
program. Exceptions to this rule (such as changing
contact element normal stiffness) are specifically
documented in the User's manual.

*** WARNING ***
Changing material properties (MP commands) between
load steps is a non-standard use of the program.

Then Ansys in-politely :( logged out! The only fix
to let me continue to restart new solutions was to
rerun all previous load steps using "run load steps
from" and then continue my work from there. Any
hints on what is happening? Thanks.

Willard Sickles, P.E.
Sr. Product Development Engineer
InterMetro Industries
Wilkes-Barre, PA