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Maximum Time Step Problems in ABAQUS

Submitted by jodavies03 on
research
ABAQUS
time step

Hi,

 I hape a relatively simple question. I am trying to set a maxmimum time step for a job by the lines:

*Static, allsdtol=0, continue=NO

0.05, 1., 1e-25, 0.05

 

so I believe the maximum time step should be 0.05 giving me a minimum of 20 increments in the step in total. However the STA file below shows that the job starts at 0.05 and the appears to ignore the maximum time step command. Can anyone tell me why this occurs?

 Abaqus/Standard 6.10-2                  DATE 08-Jan-2013 TIME 14:29:13

 SUMMARY OF JOB INFORMATION:

 STEP  INC ATT SEVERE EQUIL TOTAL  TOTAL      STEP       INC OF       DOF    IF

               DISCON ITERS ITERS  TIME/    TIME/LPF    TIME/LPF    MONITOR RIKS

               ITERS               FREQ

   1     1   1     0     3     3  0.0500     0.0500     0.05000   

   1     2   1U    5     1     6  0.0500     0.0500     0.9500    

   1     2   2     0     3     3  0.287      0.287      0.2375    

   1     3   1U    7     0     7  0.287      0.287      0.7125    

   1     3   2     0     3     3  0.353      0.353      0.06558   

   1     4   1U    3     0     3  0.353      0.353      0.6469     

m0435117

Have you tryed to set the minimum and maximum timestep to the same value (in CAE)?

 Mabe the line should look like :

 

*Static, allsdtol=0, continue=NO

0.05, 1., 0.05, 0.05

You also could have a look in the documentary

CF

Wed, 01/09/2013 - 09:33 Permalink
jodavies03

Hi Akumar,

 

thanks for the reply, yes I have found that I am modifying the time step using the VCCT linear scaling option. I wasn't aware that this would override the maximum time step, but I supose it makes sense.

Jo 

Tue, 01/15/2013 - 12:51 Permalink
Akumar

 glad to know it resolved your problem :)

------

The world started with 0, is progressing with 0, but doesn't want 0.

Tue, 01/15/2013 - 15:08 Permalink