A stainless-steel pipe of length 26.4 metres will be manufactured and hardened; the pipe will be driven into the ground later with the help of a pile driver hammer in order to support a beam. Your task is to determine: 1. The change in length of the pipe when the pipe temperature is raised by 277 , 2. Recalculate the change in length if the material of the pipe is changed to aluminium alloy. 3. Calculate the thermal stresses in both pipes if they were prevented from expansion during heating, For stainless steel: The coefficient of linear expansion a of stainless steel = 17.8 / Young Modulus =200 /2 For the aluminium alloy: The coefficient of linear expansion of the aluminium alloy = 22.9 / Young's Modulus =72 /2