The two vertical steel [E = 200 GPa] rods that support rigid barABCD are initially free of stress. Rod (1) has an area ofA
1 = 340 mm2 and a length ofL
1 = 3.6 m. Rod (2) has an area ofA
2 = 315 mm2 and a length ofL
2 = 1.2 m. Assume dimensions ofa = 3.4 m,b = 1.2 m, andc = 1.5 m. After a load ofP = 60 kN is applied to the rigid bar atD, determine:
(a) the normal stresses in rods (1) and (2)
(b) the magnitude of the downward deflection of the rigid bar atD.
Extracted text: y,V (2) L2 a В C D x,u Rigid bar (1) Answer: (a) 01 = MPa 02 = i MPа (b) VD = i mm