SCF_9

Rod with shoulder fillets under bending

Function SCF_9 returns the stress concentration factor for a stepped bar with shoulder fillets. The rod is subject to bending moments.

Inputs:
D - the diamter of the rod ([m] or [ft])
t - the depth of the shoulder ([m] or [ft])
r - the radius of the fillet ([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_9(D,t,r)

{Solution:
SCF=0.9064
}

Reference: Wilson, I. H., and White, D. J., 1973, "Stress Concentration Factors for Shoulder Fillets and Grooves in Plates," Strain Anal., Vol. 8, p. 43. in Pilkey, Walter D. (1997). Peterson's Stress Concentration Factors (2nd Edition). John Wiley & Sons. p. 164. Online version available at: http://www.knovel.com/knovel2/Toc.jsp?BookID=583&VerticalID=0

Stress Concentration Factors Index