Maximum Stress on a wheel in motion

[Davieslad]

Homework Statement

I have a vehicle traveling 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 won't go beyond its yield strength.

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

Homework Equations

stress = force/area

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?