8-82. Determine the horizontal force P that must be applied perpendicular to the handle of thelever at A in order to develop a compressive force of 12 kN on the material. Each single square-threaded screw has a mean diameter of 25 mm and a lead of 7.5 mm. The coefficient of staticfriction at all contacting surfaces of the wedges is µ = 0.2, and the coefficient of static friction atthe screw is μ's = 0.15.Problems 8-81/82WA B15° C 15°250 mm

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-82. Determine the ho ver at A in order to de readed screw has a m

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.4P: The two homogeneous bars AB and BC are connected with a pin at B and placed between rough vertical...

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Question

8-82. Determine the horizontal force P that must be applied perpendicular to the handle of the
lever at A in order to develop a compressive force of 12 kN on the material. Each single square-
threaded screw has a mean diameter of 25 mm and a lead of 7.5 mm. The coefficient of static
friction at all contacting surfaces of the wedges is µ = 0.2, and the coefficient of static friction at
the screw is μ's = 0.15.
Problems 8-81/82
WA B
15° C 15°
250 mm

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