- #1

Zararuth

- 1

- 0

- Homework Statement
- 8. A steel tyre is heated and slipped on to a wheel of radius 40 cm, which it fits exactly at a temperature of oC.

(a) What is the maximum value of if the tyre is not to be stretched beyond its elastic limit when it has cooled to air temperature (17 0C)? (Coefficient of linear expansion of steel = 0.000 012 oC-1)

(b) What will then be the tension in the tyre, assu¬ming it to be 4 cm wide and 3 mm thick?

The elastic limit for steel occurs at a tension of 2.75 x 108 Pa. The wheel may be assumed to be at air temperature throughout and to be incompressible.

- Relevant Equations
- /

Hi,

I have been trying to solve question A for a while now but keep getting stuck. Would anyone know what to do after this? My teacher told me that maybe I should try using the elastic limit (in part b) but normally if I had needed it, it would have been in the first part of the question.

Last edited by a moderator: