Determine the maximum magnitude P of the load the beam will support if the average shear stress in each pin is not allowed to exceed 60 MPa. All pins are subjected to double shear as shown, and each has a diameter of 18 mm. 30° 2m- 2 m- -2 m- P Probs. 1-64/65 P B

The bridge is pinned at A and has a roller at G. A downward load of 12.5 lb is applied at point C, and a downward load of 25 lb is applied at E. The support reactions at the pin and roller are shown on the image. Find the stress in members making up the bridge using either the method of joints or method of sections.

Determine the force in each member of the truss shown by the method of joints and/or section

Q-1 Link-2, shown in the figure, is 30 mm wide, has 12 mm diameter bearings atthe ends, and is cut from low carbon steel bar having a minimum yield strength of190 MPa. The end-condition constants for link-2 are C = 1 and C = 1.2 for bucklingin and out of the drawing, respectively.a) Draw necessary and clear free-body diagrams to determine the reactions atthe supports and the load on both member-2 and member-3. b) Determine a suitable thickness for link-2, based on a design factor of safetyηD = 4, and considering a material having E = 207 GPa, and a minimum yieldstrength Sy = 350 MPa.c) Determine the stress and resulting factor of safety for each pin, and state yoursuggestions in case of design factors less than 4.