Maximum Stress on a wheel in motion

[Davieslad]

1. The problem statement, all variables and given/known data
I have a vehicle travelling at 180 ms^-1, weighing 2000kg.
I need to calculate the maximum stress that the wheel is likely to sustain if it hits a solid, immovable object at the above speed, so that i can successfully design a wheel which wont go beyond its yield strength.

Does anyone know of any formula to calculate the maximum force transmitted to the wheel


2. Relevant equations

stress = force/area

3. The attempt at a solution

Im not really sure where to start with the maximum stress.

Any help much appreciated

Cheers
Ed

[spaceshipone]

I would think you'd need to at least know the modulus E of the material to find the max allowable stress?