A turnbuckle, similar to that shown in Fig. 8-17, isused to tension member AB of the truss. The coefficient of the static friction between the square threaded screws and the turnbuckle is μs = 0.5 .
The screws have a mean radius of 6 mm. and a lead of 3 mm. If a torque of M = 10 N.m is applied to the turnbuckle, to draw the screws closer together, determine the force in each member of the truss. No external forces act on the truss