SCF_5

Rod with circumscribing u-shaped groove under torsion

Function SCF_4 returns the stress concentration factor for a rod of diameter D with a circumscribing U-shaped groove. The rod is under torsion.

Inputs:
D - the diameter of the rod ([m] or [ft])
t - the depth of the notch from surface (maximum normal distance between surface face and notch) ([m] or [ft])
r - the radius of the notch ([m] or [ft])

Example:
$Load Mechanical Design
$UnitSystem SI K Pa
D=0.24 [m]
t=0.025 [m]
r=0.075[m]
SCF=scf_5(D,t,r)

{Solution:
SCF=1.224
}

Reference: Rushton, K. R., 1964, "Elastic Stress Concentrations for the Torsion of Hollow Shouldered Shafts Determined by an Electrical Analogue," Aeronaut. Q., Vol. 15 p. 83. in Pilkey, Walter D. (1997). Peterson's Stress Concentration Factors (2nd Edition). John Wiley & Sons. p. 128. Online version available at: http://www.knovel.com/knovel2/Toc.jsp?BookID=583&VerticalID=0

Stress Concentration Factors Index