8–7 For the screw clamp shown, a force is applied at the end of the handle...

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Mechanical Engineering

8–7 For the screw clamp shown, a force is applied at the end ofthe handle 3.5
in from the screw
centerline. The 3/8
in diameter handle is made of cold-drawn AISI 1006 steel. The screwis
3/4
in-10 UNC and is 8 in long, overall. The maximum possible length ofscrew in the clamping
region is 6 in.
(a) What screw torque will cause the handle to bendpermanently?
(b) What clamping force will the answer to part (a) cause if thecollar friction is neglected and
if the thread friction is 0.15?
(c) What clamping force will cause the screw to buckle?
(d) Are there any other stresses or possible failures to bechecked?

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