calculation of shear stress of bolt joint of coupling connected to rotating shaft?
You'd have to know the torque transmitted through the joint. The shear force on the bolt is torque/radius. Stress is force/bolt area. If the bolt runs through the joint such that it receives force in two places of equal radius, you have twice the area, half the stress.
Q = the torque of the shaft in Newton- meters
D = diameter of bolt circle in meters
N = number of bolts
d = diameter of bolt in centimeters
V = shear force acting on a bolt in Newtons
v = shear stress in Newtons per cm^2
(1). V = 2Q/(D x N)
(2). v = V/((pi x d^2)/4)
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