Ques 3
Asked by rbhatt16
21st February 2018,
10:20 PM
Answered by Expert
Answer:
As shown in the figure a slanted plane that makes an angle with the horizontal direction is subjected to stress due to forces acting on both sides. We resolve the forces one parallel to the slanted plane and other perpedicular to the slanted plane as shown in figure. The resolved component of forces perpendicular to the slanted plane produces tensile stress. The resolved component of forces parallel to the slanted plane produces shear stress.
Tensile stress = F sinα / A , where A is the cross section area of the slanted plane.
Tensile stress is maximum when α = 90º i.e. when the slated plane is vertical
Shear stress = F cosα /A ; Shear stress is maximum when α = 0º i.e., when the slanted plane is horizontal
Answered by Expert
22nd February 2018,
1:54 PM
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