Coefficients in Neo Hookean model?

[curlyq]

What exactly do the coefficients stand for in the neo hookean hyperelastic model? Do they have some type of physical conversion on what they are actually changing? I can't seem to find much information about them. Thanks.

 

[rstupplebeen]

http://polymerfem.com/faq.php?faq=polymerfem_faq

I have used this if the test data was not available with fairly good success. I hope it helps.

Rob Stupplebeen