In the calculation of induced shear stress in helical springs, the Wahl's stress factor is used to take care of
A. Combined effect of transverse shear stress and bending stress in the wire
B. Combined effect of bending stress and curvature of the wire
C. Combined effect of transverse shear stress and curvature of wire
D. Combined effect of torsional shear stress and transverse shear stress in the wire
Answer: Option B
This Question Belongs to Mechanical Engineering >> Machine Design
In order to take into account the effect of direct shear and change in coil curvature a stress factor is defined, which is known as Wahl's factor
Combined effect of transverse shear and curvature
Combined effect of transverse shear stress and curvature of wire.
combine effect of direct shear stress and curvature effect
Option C is correct