Learning Forum

[Puhan]

Hello

I hope everyone is doing well.

I am just requesting to ask that even if I added the details as following for exponential for interface delamination for contact debonding in Ansys workbench as follows

[Erik Kostson]

Hello
Not sure, but I would suggest to follow and do exactly as in our video: so look through this very carefully and replicate the steps (you parts seem strange for instance make sure you have only two surfaces representing two 2D bodies in plane strain). Thus make sure the analysis is 2D set (under the system and geometry cell), plane strain is chosen in Mech., Pure penalty contact is chosen for the bonded contact, etc - see these videos for all details.

[Puhan]

Hello

Thank you very much for the reply. Actually, I am exactly following this video but in that video, he is not explaining this particular part where unfortunately I am having a problem. Kindly please help, I did everything according to that but something is missing, I think but had tried a lot.
Interestingly the yellow mark is vanishing if I am putting any cohesive zone law except for "Exponential for interface delamination". But in that video, it was working fine which is really strange to me. Kindly please help, I am attaching the file also for your kind perusal.
With regards
Biswabahnu Puhan

[Erik Kostson]

Hi
We are not allowed to open files.
See this note below for the issue here. You need to use the highlighted settings below - so the czm material used in your case and as shown in your screenshot above is not accepted by Mechanical. We need to choose as mentioned/shown below (screenshot from the help manual for latest version) either Separation-Distance based Debonding or Fracture-Energies based debonding.

As for the videos, they are using a previous release when this might have worked - as per manual above though this (Exponential for interface delamination) is not supported anymore.

[Puhan]

Hello

Thank you very very much, I have my doubts cleared.

With regards
Biswabhanu Puhan

[Erik Kostson]

More than welcome - all the best and take care.

Erik

[Puhan]

Hello
Actually this is the result referred by Ansys.
The actual site is https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v195/wb_vm/wbvt_VMSIM089.html


But I am getting like the following
Which is very very high, Can you please help me why I am getting this, this is plotted between reaction force at the displacement and the displacement, Kindly please help. I don't know where the problem is!

With regards
Biswabhanu Puhan

[Erik Kostson]

Hi

Could you please open up a new post since we are off the original topic - closing this one.

All the best

Erik

PS : also I do not know why this is since I never use this feature

[Erik Kostson]

To close this of, I would suggest to get the model files from below since the example you are looking at above, exists in our verification manual (example: VMMECH089).

Below you can see how to obtain these (VMMECH) files:

[Erik Kostson]

Also make sure we use kg mm units, and so on and force the solver use so choose nmm (shown below)