PROGRAM TO DESIGN A PAD EYE TYPE LIFTING LUG v.03

COMPANY: PROJECT:
ITEM NUMBER:

Select a metric shackle from the lookup table based on the force on the lug or click the SHACKLE button to enter your own

in	Shackle Inside Width at Pin
in	Shackle Eye Diameter
in	Shackle Pin Diameter
in	Lug Pin Hole Diameter	Recommend hole be 0.13� or > than shackle pin dia.
in	Lug Radius
in	Lug Plate Thickness
in	Lug Plate Width at Base	Minimum value of 2*radius of lug
in	Lug Pad Thickness	Input zero if pads are not required
in	Lug Pad Radius	Input zero if pads are not required
in	Lug Eccentricity
kips	Force on the Lug
deg	Angle of the Force on the Lug	Measured from the horizontal
ksi	Yield Stress of the Lug Material	Fy
kips/in	Allowable Force on the Weld	Use 10.91 for LH60 or 14.85 for LH70
	Impact factor, IF	Recommend that a minimum 1.8 impact factor be used

Result:

OUTPUT:
Checking combined stress of the lug plate

	in^2	Area of Lug Plate at Base
	in^3	Section modulus of the lug plate at the base
	ksi	Bending stress of the lug plate fb, actual
	ksi	Tension stress of the lug plate ft, actual
	ksi	Shear stress of lug plate fs, actual
	ksi	Allowable bending and tension stress, Fb & Ft
	ksi	Allowable for the shear stress, Fs
		Combined stress of the lug plate. Must be less than 1.0

Checking the lug weld size, with the weld treated as a line

Checking bearing at the pin hole


	ksi	Bearing stress of the lug without pads
	ksi	Bearing stress with pads attached
	ksi	Allowable bearing stress
	kips	Load per pad
	in	Pad weld size, min.

Checking end area of the lug across the pin hole


	in^2	End area required across the pin hole
	in	Maximum effective lug radius. Used to calculate the max. allowable end area
	in^2	Maximum effective end area

Checking end area of the lug past the pin hole


	in^2	Area required past the pin hole
	in^2	Actual end area
	in^2	Maximum allowable end area