Arruda Boyce material model for Silicone

[Gyrus1]

Hi,

I looked at the recent Rubber Sim post with interest, as I am currently analysing a silicone component. I usually use the Mooney Rivlin model as recommended in the Rubber Sim post. However, this silicone has an elongation of 375%. Looking at previous FEA articles on this subject, it is suggested that the Arruda Boyce model is better suited to models with such elongations and also preferred for silicone.

I have successfully run a Mooney Rivlin model for this case, but I am interested in comparing the Arruda Boyce model with this.

For a 70 A Shore hardness silicone does anyone have the data to fill in the Autodesk material model, in particular, the Locking Stretch value?

Thanks.

[PipePakPat]

Navigate to the following web address to view past Algor web courses:

http://www.algor.com/my_account/webcourse_access.aspx

Then view the course titled, "Using Hyperelastic and Viscoelastic Material Models in MES - 02/24/2009".

I believe this web course will answer all of your questions.