Let me introduce myself, I am Stephane, French student in mechanical engineering school, especially for FEA subjects. I am currently in work placement in a company, performing some ANSYS FEA calculations. For one of this study, I have a rubber washer to define. It must be in HNBR material for some heating reason. It only works in compression.
I have some technical datas from providers, very often they are :
- Hardness (Shore A)
- Tensile strenght
- Ultimate elongation
- Modulus 100% (compression set)
I thinked to modelize this material by using "classical" elastomer model such Neo-Hookean or simplier Blatz-Ko (considering material is incompressive)
My questions are :
- What about the choice of this model ? May I consider Mooney-Rivlin instead of the one I chose ?
- Is my technical datas enough to define this material model ? In fact, is there a relation between Hardness, Tensile Strenght, Ultimate elongation, compression set and Bulk, shear or Young modulus ? Since providers never give these values.
I hope someone will be able to answer, don't hesitate to ask if something is not clear in my demand.
(sorry for my English, I think it is far away from perfection)