Hi,
I'm doing MES analysis in Multiphysics 2013 and during the analysis an error message appears and analysis stops.
The message is "error opening in output files"
Can someone explain this?
This type of problem is often model dependent or system dependent. Please click the big "S" button in the top left of the interface and choose to create an archive of the model only. Upload the resulting *.ach file for our review. If the file to too large to upload, then you can open a case with product support through the Autodesk Subscription Center so that we can address this issue more appropriately.
The error message is "error opening in output files" or "restart failed in opening output files"?
It seems that I did not see "error opening in output files" previously.
Shoubing
I copied the last part of the log here,
Time Percent DT L Iter. Residual 0.00000000E+00 0.0000 0.000400 1 0 0.0000E+00 4.00000000E-04 2.0000 0.000400 1 0 5.0000E-03 4.00000000E-04 2.0000 0.000400 1 1 5.0000E-03c 8.00000000E-04 4.0000 0.000400 1 0 5.0000E-03 8.00000000E-04 4.0000 0.000400 1 1 5.0000E-03c 1.20000000E-03 6.0000 0.000400 1 0 5.0000E-03 1.20000000E-03 6.0000 0.000400 1 1 5.0000E-03c 1.60000000E-03 8.0000 0.000400 1 0 5.0000E-03 1.60000000E-03 8.0000 0.000400 1 1 5.0000E-03c 2.00000000E-03 10.0000 0.000400 1 0 5.0000E-03 2.00000000E-03 10.0000 0.000400 1 1 5.0000E-03c ** restart failed in opening output files ** Error (1) ** Job started : 2012-06-22 19:13:01 ** Job finished : 2012-06-22 19:48:03 ** Total elapsed time : 35:2 (minutes:seconds) !! Program aborted !
What does it mean?
Hi.
In my analysis a new error appeared.
** Warning: element 3091 in part 7: determinant =-.55449449E-01<= DETTOL!
What does it mean?
That exact error message is not in the documentation, but the error message in the documentation that does include the word "determinant" indicates that the element is distorted.
When does this occur? Near time 0? Or after part 7 experiences large strain?
Note that you can locate the element from "Results Inquire > Element Information > Specify". This will select the element, so changing the "View > Appearance > Visual Style" to Features" will help to locate that one element.
It seems that there is a temporary IO error. Which version are you using? Rerun the same model might get works. Did you try it?
Shoubing
ramses061 wrote:
I copied the last part of the log here,
Time Percent DT L Iter. Residual 0.00000000E+00 0.0000 0.000400 1 0 0.0000E+00 4.00000000E-04 2.0000 0.000400 1 0 5.0000E-03 4.00000000E-04 2.0000 0.000400 1 1 5.0000E-03c 8.00000000E-04 4.0000 0.000400 1 0 5.0000E-03 8.00000000E-04 4.0000 0.000400 1 1 5.0000E-03c 1.20000000E-03 6.0000 0.000400 1 0 5.0000E-03 1.20000000E-03 6.0000 0.000400 1 1 5.0000E-03c 1.60000000E-03 8.0000 0.000400 1 0 5.0000E-03 1.60000000E-03 8.0000 0.000400 1 1 5.0000E-03c 2.00000000E-03 10.0000 0.000400 1 0 5.0000E-03 2.00000000E-03 10.0000 0.000400 1 1 5.0000E-03c ** restart failed in opening output files ** Error (1) ** Job started : 2012-06-22 19:13:01 ** Job finished : 2012-06-22 19:48:03 ** Total elapsed time : 35:2 (minutes:seconds) !! Program aborted !
What does it mean?
I don't know how this is happen but now this error disappeared. I'm fighting with timesteps. My simulation always fails. I sent you the model. Could yo looked my new model? I sent you an invitation from my dropbox folder. My model always gives an autotm limit errors and i've never be able to finish it. Please help me
I really thank you very much. I only want to take my results from start to the end. I attached here my load curve. I want the calculate the stresses at the spesific times.
There is only one surface force in the model, and there is no constraint on he head. Is it right?
Moreover, you don't want to consider 'Gravity", right?
Shoubing
Yes. Only 1 surface load and no constraints on the head. I want to apply a dynamic force to the head. I attached the load curve. The force begins to hit at the time 0,00207 s. And i started to run the calculation at that time to decrease the simulation duration.
The warning message "** Warning: element 3091 in part 7: determinant =-.26223249E-01<= DETTOL!" is related to the bad element shape. If the element shape is too bad at the very beginning,somehow some deformation will result in too small deternimant. Actually, the mesh in part 6 and part 7 is not good. Especially in the impact area. Finer mesh for part 6 and part 7 is prefered. However, even the current mesh size make the model too large for my computer to handle easily. You might to enlarge the mesh size the other parts which is not so important.
Shoubing
Well. It seems that this kind of warning message happens after a convergent step, and the following step has a half step size. In this case, the warning message might be related to the trial solution based on the the last convergent step. And the code automatically cut time step.
Shoubing
The model should be symmetric. We can use a symmetric model with finer mesh to obtain better elemet shape and more stable running.