The rigid bar ABCD of negligible weight is initially horizontal, and the steel rods attached at A and C are stress-free. The 20-kip load is then applied and the temperature of the steel rods is changed by AT. Find AT for which the stresses in the two steel rods will be equal. Use a= 6.5 x 10-6 /°F and E=29x10°. A= 0.5 in. 3 ft 20 kips 2 ft 2 ft -→ 4 ft 4 ft- A = 0.75 in.?

Q- A uniform prismatic circular bar made up of rigid material is subjected to a tensile force of 5000 N at one end. If the diameter of the cross-section is 7 mm, then find the stress and strain in the bar.

30. An aluminum alloy rod has a circular cross section with a diameter of 8mm. The rod is subjected to a tensile load of 5kN. Assume that the material is in the elastic region and E = 69 GPa. If Poisson's Ratio is 0.33, what will be the lateral strain? E= 6/8 v = -E(lateral)/(axial)

Show the relationship between axial stress and strain to get the axial deformation