Hyperelastic Material definition

[tmoser]

I'm using Creo Simulate, version 4.0

I'm trying to run a structural simulation on a model that has rubber isolation mounts in it. Normally, I would represent the rubber components with linear springs but I don't have any information on the mounts in this case. I know these are non-linear but there is usually a region of the load deflection curve that is nearly linear so approximating with springs has worked okay for me

. 

Without a load/deflection curve I'm considering modeling the rubber part and defining a Hyperelastic material. However, I have no idea what to use for the constants. Neo-Hookean needs C10 and D1 and Mooney-Rivlin needs C10, C01 and D1. These parts are made fo 45 durometer natural or Butyl rubber. Does anyone know a source for this kind of information?

[skunks]

info att.

[tmoser]

Thank you. Looks like it will take me awhile to read through that.

[SweetPeasHub · Accepted solution]

Best to test actual material but in a pinch...

https://docplayer.net/38659581-Analyzing-hyperelastic-materials-w-some-practical-considerations.html

[tmoser]

SweetPeasHub and skunks,

Your posts were both helpful, though I still need to fully read them. I  used the data from SweetPeasHub to define my material and I got some pretty reasonable looking results. I would love to have actual test data but I don't see that happening.