Thermal Stress A brass cylinder, 35 mm in diameter and 0.5 m long, is held endwise between two unyielding supports while its temperature is raised by 50 C. Q6). a). Determine the stress in the bar and the force it continues to exert on each of the supports. If the supports are now allowed to yield by 0.32 mm, determine the new stress in the bar and the force it continues to exert on the supports b). 2+2 marks