50 cm-long circular rod has a diameter of 10 mm and is acted pon by a 20 kN load acting to its centroid, E = 200 GPa, Determine he following: Axial Stress Deformation - Strain . If the axial stress is limited to 25 MPa, Determine the maximum ad that the rod may carry. If the deformation is limited to 1 mm, Determine the maximum bad that the rod may carry.

Q3.For the stress state shown below: 300 MPa 100 MPa 100 MPa → 200 MPa 200 MPa - 100 MPa 100 MPa 300 MPa (a) Plot Mohr's circle for the stress state. (b) Calculate the principal stresses and their orientation with respect to ther axis? (c) Using your answer from (b) to help you, plot Mohr's circle for strain.

Determine the average axial tensile stress in the bar of the figure below if P=225 kN and the cross sectional area of the bar is 2500 square mm

(a) A steel structural member of length = 10 ft. is supported between two fixed supports so that it cannot expand.  At 68°F, there is no stress in the member.  (E = 30 x 106 psi and α = 6.5 x 10-6/°F)    Calculate the stress (psi) in the member at 95°F.   Stress (psi) =      (b) If the same structural member is not supported between two fixed supports, calculate the total elongation of the member (in.) for the same temperature change.        elongation (in.) =