Two plates are connected by bolts as shown in the figure. Compute the maximum axial stress that each plate will handle. The allowable shear stress of each bolt is 50 MPa and the diameter of each bolt is 20 mm.

Find the tensile stress in MPa in member AB shown in the figure All connection bars have a square cross section and the bar width is 15 mm. Points A, B and C are pin connections. Square 15 mm side 6m 3.5m C. D. 20KN

2. Refer to the figure below. In addition to the load at point D, if another load Q (Q=10F) along x direction acts at the center of the right end section of bar OABC, solve for the maximum load F with a safety factor of 2.0 using the maximum shear stress theory. Find the stresses at the origin point O. Assume the yield strength of the steel is 42 kpsi with v=0.3. Hints: The centroid of a semicircle lies at a distance of 4r/(3) measured along the vertical radius (r) or y-direction. 2 in. 1-in D. -in R. 1-in D. 12 in 15 in 1-in D.