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ankushaggarwal2 (Aerospace) (OP)
29 May 07 11:39
I want to do a contact problem analysis and I am using ANSYS 10.0 version. Even while doing the tutorials, the ANSYS just crashes when solve command is given. Then I tried a macro from net, again it crashed. So, I thought of trying it on version 9. And it works on version 9. Does anyone know if there is any problem/bug in 10.0 version for the contact problem? And if there is any solution for this?

Thanks!
cbrn (Mechanical)
29 May 07 12:29
Hi,
I've been using all sorts of contacts from v.7.0 to 11.0 including v.10 and v.10 sp1 (sp2 for WB), without any problem.
It seems very strange that an APDL script runs in v.9 and not in v.10.
Are you sure that your installation of v.10 is not corrupted in some way?

Regards
ankushaggarwal2 (Aerospace) (OP)
29 May 07 12:57
Actually I am using ANSYS in the department lab. So, I have no idea about the installation. Is there any way? Probably I will have to ask them.

And is the CONTACT element 48 not available in 10.0 version?
Can you tell me some good tutorials for the contact problem. I am just learning these and these seem to be very difficult at first look.

Thanks!
cbrn (Mechanical)
30 May 07 5:11
Hi,
CONTA48 does not exist (or, at least, is undocumented) in v.10.
As there is no reference of it under "Undocumented elements" in the Release Notes, I suspect it was retired in earlier versions. Probably, v.9 still supported it though it already had a "new technology" element in replacement. You should check that and find the equivalent "new technology" element corresponding to the "old" CONTA48.
However, this can explain why the solve doesn't run. You might find info about what happened just before the crash either in the log or in the err file: possibly, the unsupported element has generated a warning / an error there.

Regards
meshparts (Mechanical)
30 May 07 12:18
Hello,

The element CONTA48 does not exist, but the element CONTAC48 do exist in the Ansys version 10.

The problem could be else where. I would check the maximum allowed number of nodes.

Also check the errors log.

Regards,
Alex
ankushaggarwal2 (Aerospace) (OP)
1 Jun 07 9:43
Thank you very much. I tried to run the same macro on other system with ANSYS 10.0 installed. But again ANSYS crashes and leaves no error either in the log file or in the err file.

As I have not done any contact problem before, I doubt that I myself can be making some mistake. If you can provide me log file or macro of any simplest problem in ANSYS, it will be really helpful to check the problem.

Thank you very much.

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