Properties of Polyurethane

[Guanton75]

Can anyone tell me the material properties polyurethane at a hardness of 60 Shore A. Specifically tensile strength, poisson ratio and modulus of elasticity. I don't usually deal with plastics... I'm trying to use FEA to get an idea how a piece will deform before I go machine a prototype.

Thank you,
Seth

 

[TheAnswerGuy]

Guanton75,

I think this webpage will help you.

http://www.rpquote.com/urethanespecs.cfm

 

[brad]

Guanton75,
Word of warning--
If the rubber is undergoing any significant level of strain (which rubber nearly always is) you cannot use a discrete value for modulus in your FEA analysis. Rubber by its nature is nonlinear, and wildly different in its constitutive behavior than metals. If you want predictive FEA results, you should use a rubber constitutive model. As you have described the problem, it appears you need to model this in a different way. ("hyperelastic" models do not take modulus per se as an input value).
Brad