Is it possible to compare the spring constants of two different materials to one another?

Question

Say you have a rubber ball with air interior.
Both the rubber ball and the air exhibit spring-like behaviour.
Using Hooke's equation for the rubber (i.e. k = F/x) and the Air Spring Equation for the air ( k = γ.P.s / L), could you compare the stiffness (k) between one another and say which one contributes more to the spring effect that the ball exhibits per unit volume?

I have googled and I would appreciate a logical answer

Answer 1

Good question!

k=F/x
The relationship between a spring elongation and force applied is constant in a particular elastic region. Is the same true for a material such as rubber? I would not mix the two and would recommend further research.

Finally, I think that we can compare the k(s) only in linear regions. .

Answer 2

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Answer 3

I would say yes, it sounds reasonable to be able to compare two k's . I'm sorry that I can't help more.

Answer 4

google it..lol

Answer 5

not really