A threaded rod and nut arrangement are guided with two washers, upper and lower washers tightened into a base plate. Considering that the base plate carries a load of 120 kN including its self-weight which is distributed equally: a. Determine the stress on the lower washers before the buts are tightened. b. Determine the stress int the upper washer when the nuts are tightened so as to produce a tension of 5kN on the bolt. c. Determine the stress int the lower washer when the nuts are tightened so as to produce a tension of 5kN on the bolt. 44 mm- Upper washer Base plate

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Part A If the required clamping force at the board A is to be 85 N, determine the torque M that must be applied to the handle of the "C" clamp to tighten it down. The single square-threaded screw has a mean radius of 10 mm, a lead of 3 mm, and the coefficient of static friction is u, = 0.35. Express your answer to three significant figures and include the appropriate units. M = 1.1142 Nm O The unit you entered is not recognized. Review a list of acceptable units. No credit lost. Try again. Submit Previous Answers Request Answer Figure 1 of 1 Provide Feedback Next > M O Pearson