Learning Forum

[Harry Begy]

Hello. I cannot fix this issue ! I have changes the substeps, "adjust to touch", Automatic time stepping, rigid body motion etc. Please assist me. Thanks a lot.

The error is as follows;

Elastomer Sample (Mooney Rivlin) contains invalid property data. Elasticity is required, but is currently undefined.

[mrife]

Hi Harry

That example material only has test data - you still need to add a hyperelastic material model and do the curve fitting.  Mike

[Rahul Kumbhar]

Hi Harry,

 

The error message is indicating missing material property. Can you show screenshot of your material properties?

[Harry Begy]

Sorry for belated reply. I do the curve fitting and then paste the coefficients. As per attached. it still faces the same error.

[mrife]

Show the material properties from WB Mechanical.  

[Harry Begy]

[Harry Begy]

So, It does not show the material properities. While, I use the curve fitting and then, the coefficients for Mooney-Rivlin appear in the previous images. 

Thanks for your responses.

[mrife]

Hi Harry 

On the Workbench project page does the Model cell of the analysis system indicate that it needs to be refreshed?  If so right-click and refresh.  Otherwise lets see what the details of the material model look like in Engineering Data.

[Harry Begy]

[Harry Begy]

It does not ask for refreshing. Thanks for your help. I am new to this section of Ansys

[Harry Begy]

Hello. I have checked eveything possible, but unfortunately still face the same error. Any idea?

 

[mrife]

Harry

Are you using a Commercial license?  If so please open a technical support case.  If an academic license (research, teaching etc) ask whomever is in charge of the licenses if they can get this escalated to normal support.  If on a student license - prove that the Mechanical model does not need updating (what does it look like on the WB project page?).

 

[mrife]

Harry

If none of the above, repost this to the Mechanical channel and not the Materials.  Then ask if Peter can look at your model.  He seems to be willing to look at student projects directly (Ansys Employees cannot download files).  See this link; Peter replied:  /forum/forums/topic/creep-analysis-linear-and-quadratic-mesh/

[Harry Begy]

Thanks for your info. and help