The steel assembly is constructed with a 0.25-inch-diameter pin at C and with 0.5-inch- diameter pins at B and D. According to laboratory tests, each pin is expected to fail at an average shear stress of 22 ksi, and member BD is expected to fail at an average normal stress of 58 ksi. (a) Using a factor of safety of 3.0, determine the maximum load P that can be applied as shown at A. (b) For the value of P you calculated, determine the average shear stress in each pin and the maximum average normal stress in member BD.
The steel assembly is constructed with a 0.25-inch-diameter pin at C and with 0.5-inch- diameter pins at B and D. According to laboratory tests, each pin is expected to fail at an average shear stress of 22 ksi, and member BD is expected to fail at an average normal stress of 58 ksi. (a) Using a factor of safety of 3.0, determine the maximum load P that can be applied as shown at A. (b) For the value of P you calculated, determine the average shear stress in each pin and the maximum average normal stress in member BD.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The steel assembly is constructed with a 0.25-inch-diameter pin at C and with 0.5-inch-
diameter pins at B and D. According to laboratory tests, each pin is expected to fail at
an average shear stress of 22 ksi, and member BD is expected to fail at an average normal
stress of 58 ksi.
(a) Using a factor of safety of 3.0, determine the maximum load P that can be applied as
shown at A.
(b) For the value of P you calculated, determine the average shear stress in each pin and
the maximum average normal stress in member BD.
Do not consider the stresses in member ABC, which is subjected to bending moment and shear.
We will learn how to calculate the stresses in beams due to bending and shear in Chapters 6 and 7.
D
D
Front view
1.5 in.
0.25 in.
B
Side view
14 in.
10 in.
A
В
Top view
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