- #1
RayRoc
- 14
- 0
I am trying to predict elastic wheel deformation. I am not quite sure how to do it. How might one approach the problem?
Take a steel wheel: 6 in. diameter, 2 in. thick, with a contact force of 1000lbs
E = 30,000,000 psi
Poisson ratio: .27
Would one calculate this in finite layers? Considering sections at a time and applying shear modulus through the layers to find the finite stress of the steel?
I have seen the stress distribution of a steel wheel against a track, and it looked like a strait coulomb from the contact area to the axial. Can it be as simple as:
Contact pressure = (volume of wheel displaced/ volume of .5 the wheel cross section) * Poisson ratio * E
There are of course many effects not realized by such a simplistic view especially when one wants to find the conditions that will cause plastic deformation at the contact area; which is ultimately what I want to know.
The gears in my head have failed, the more I think about this problem the louder the grinding noises.
Take a steel wheel: 6 in. diameter, 2 in. thick, with a contact force of 1000lbs
E = 30,000,000 psi
Poisson ratio: .27
Would one calculate this in finite layers? Considering sections at a time and applying shear modulus through the layers to find the finite stress of the steel?
I have seen the stress distribution of a steel wheel against a track, and it looked like a strait coulomb from the contact area to the axial. Can it be as simple as:
Contact pressure = (volume of wheel displaced/ volume of .5 the wheel cross section) * Poisson ratio * E
There are of course many effects not realized by such a simplistic view especially when one wants to find the conditions that will cause plastic deformation at the contact area; which is ultimately what I want to know.
The gears in my head have failed, the more I think about this problem the louder the grinding noises.