Recent content by heloo

I am unsure of what equations to use, i assume i need to work out the thermal expansion but i don't know how to calculate how much force is needed to force it back to its original length.

Hi, I have been asked to determine the stress in a bar which has a diameter of 50mm when the temperature changes from 20 C to 50C. That's the first part. Secondly, I need to then answer whether or not the stress will be sufficient enough to raise a constraining load of 40 tonnes. Young's...