SimScale CAE Forum

Mooney-Rivlin Constants

Good Day,

I am trying to analyze butyl rubber, which requires Mooney-Rivlin Constants. Does anyone know the ballpark of what these constants are, or a database of where to find them? In particular the Hybrid III neck rubber of a crash test dummy.

I do know that the best method would be to conduct physical tests and derive the properties from there, but due to covid this is currently out of the question.

Any help would be much appreciated.

Hey there!

Found this doc via a Google search: https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwjmuZeS6obrAhXCy6QKHZyoD3cQFjABegQIBRAB&url=https%3A%2F%2Fresearch.tue.nl%2Ffiles%2F46928462%2F639681-1.pdf&usg=AOvVaw1x-1v1kgSztld5rtPO85D_ - Master thesis with the title “FEM-modelling the Hybrid III’s neck
a validated neck model of the 50th percentile adult Hybrid III dummy in MADYMO 5.1”

Hope that helps!

Jousef

Jousef!

I can’t believe how helpful and efficient you are. I have been scouring the internet for details on the subject and haven’t found much. I cannot describe how grateful I am for that help. Did you use any search engine in particular, or what key words did you use (I know that seems like a banal question, but I really have been searching like a madman).

Thanks again!

Sure, no worries @tmoschides!

I simply looked for something like “Hybrid III neck rubber thesis/Mooney Rivilin” or anything similar to that :slight_smile:

Good luck with your investigations, would be great if you keep us posted!

Jousef