dear sir
i am rolling of thick plates analysis in abaqus.Completing one analysis it took 10-15 minutes. i want to do minimum 35 analysis by cahnging the rolling paramters. some one told me that if you are giving the mass sacling factor means CPU time will reduce, and process will complete as soon as possible. my stip lenthg is 100mm and thick ness is 6mm, and feed rate is 20m/s. please can tell me how to give mass sacling value for this problem.
Thank you very much
Devarjan,K
There is several ways to reduce CPU time in explicit step:
-
You can increase mass
density of used materials
-
Decrease the step time if
you are running quasi static analysis
-
Using mass scaling. In the
case of mass scaling you can directly specify target time incrementation: goto
edit step -> Mass Scaling -> Use scaling definitions below -> Create…
->
Objective: Semi-automatic mass scaling
Type: uncheck “scale by factor” and check
scale to target time increment of …
In the box, write your target increment and
then click ok.
hello sir after
hello sir
after giving the target time increment , error comming. instead of giving to trget time increment can i set scale by factor..?
Yes you can
But in this case You cannot urge program to have your target increments. Also
it was better if you mentioned the error message here.
Influence of mass scaling on thermal calculation in explicit sol
Dear friends
,
I have seen
you are talking abou mass scaling. I have a question. Peerhaps you could give me
an advice. My question is about fully coupled thermal stress analysis in
Abaqus/Explicit. In the Abaqus manual it is stated that the mass scaling in
these simulation does not influence the thermal calculation. I have also
submitted several simulations, where I see that the thermal calculation is not
affected by even large scaling factor. However, I do not understand how the
procedure is conducted. As far as I know larger density leads to higher lumped
capitance matric and this turn will lead to different calculation for the temperature.
Does anyone have good ideas or a reference about coupling of thermal and
mechanical simulation with explicit solver. Thank you very much in advance.
Best wishes
vahid
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