he bar clamp is being used to clamp two boards together while the glue between them cures. What torque M must be applied to the andle of the screw in order to produce a 68-lb compression between the boards? The 0.375-in.-diameter single-thread screw as 18 square threads per inch, and the effective coefficient of friction is 0.27. Neglect any friction in the pivot contact at C. What orque M' is required to loosen the clamp? M

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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The bar clamp is being used to clamp two boards together while the glue between them cures. What torque M must be applied to the
handle of the screw in order to produce a 68-lb compression between the boards? The 0.375-in.-diameter single-thread screw
has 18 square threads per inch, and the effective coefficient of friction is 0.27. Neglect any friction in the pivot contact at C. What
torque M' is required to loosen the clamp?
Answers:
M =
M' =
i
i
C
lb-in.
lb-in.
M
Transcribed Image Text:The bar clamp is being used to clamp two boards together while the glue between them cures. What torque M must be applied to the handle of the screw in order to produce a 68-lb compression between the boards? The 0.375-in.-diameter single-thread screw has 18 square threads per inch, and the effective coefficient of friction is 0.27. Neglect any friction in the pivot contact at C. What torque M' is required to loosen the clamp? Answers: M = M' = i i C lb-in. lb-in. M
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