Padeye Design Calculator

Input Parameters

Yield stress, sy (MPa)

Electrode tensile strength, sw (MPa)

Modulus of elasticity, E (MPa)

Poisson's ratio

Padeye Geometry

Radius of main plate, R (mm)

Thickness of main plate, t (mm)

Diameter of eye pin hole, DE (mm)

Diameter of cheek plate, DC (mm)

Thickness of cheek plate, tC (mm)

Total height of padeye, H (mm)

Length of base plate, L (mm)

Weld Size

Base weld leg size, tw (mm)

Cheek plate weld leg size, twc (mm)

Shackle Geometry

Shackle SWL, SWLsh (MT)

Shackle inside length, Lsh (mm)

Shackle jaw width, Wsh (mm)

Shackle pin diameter, Dshp (mm)

Sling Geometry

Sling diameter, Dsling (mm)

Padeye Load

Load on padeye, P (MT)

Angle of load with vertical, θ (deg)

Out of plane angle, φ (deg)

Lift type

Padeye Diagram

Geometry Check

Stress at Pin Hole

Stress at Base Plate

Base Weld Check

Cheek Weld Check

Geometry Check

Main Plate Radius

Parameter	Value	Status
Main Plate Radius, R	80	OK

Shackle Clearance Check

Parameter	Value	Status
Clearance between pin hole diameter and pin diameter	8	OK
Length clearance of shackle, dLshackle	41.824	OK
Width clearance of shackle, dWshackle	33.462	OK

Stress Check at Pin Hole

Bearing Stress Check at Pin Hole

Parameter	Value	Unit	Status
Bearing area, Abe	1193.8	mm²
Bearing stress, sbe(actual)	121.6	MPa	OK

Shear Stress Check at Pin Hole

Parameter	Value	Unit	Status
Shear area of pin hole, Asp	2420	mm²
Shear stress at pin hole, ssp(actual)	60.0	MPa	OK

Tensile Stress Check at Pin Hole

Parameter	Value	Unit	Status
Tensile area, Atp	2420	mm²
Tensile stress at pin hole, stp(actual)	60.0	MPa	OK

Hertz/Contact Stress Check at Pin Hole

Parameter	Value	Unit	Status
Design load per unit length, p	0.3077	MT/mm
Hertz stress at pin hole, sH(actual)	469.8	MPa	OK

Stress Check at Base Plate

Tensile Stress Check

Parameter	Value	Unit	Status
Design tensile force, Pt	2.736	MT
Tensile area, Atb	2000	mm²
Tensile stress at base, stb(actual)	13.4	MPa	OK

Bending Stress Check

Parameter	Value	Unit	Status
Moment lever for Horizontal/Lateral force, h	120	mm
Moment lever for Vertical force, e	40	mm
Total design moment about x-axis (in plane), Mdxx	1348.3	MTmm
Section modulus of base about x-axis (in plane), Zbxx	66666.7	mm³
Bending stress about x-axis (in plane), sbbx(actual)	198.3	MPa	OK
Total design moment about y-axis (out of plane), Mdyy	0	MTmm
Section modulus of base about y-axis (out of plane), Zbyy	6666.7	mm³
Bending stress about y-axis (out of plane), sbby(actual)	0	MPa	OK

Shear Stress Check

Parameter	Value	Unit	Status
Shear area at base, Asb	2000	mm²
Shear stress at base, horizontal, tsby(actual)	58.8	MPa	OK
Shear stress at base, lateral, tsbx(actual)	0	MPa	OK

Von Mises Stress Check

Parameter	Value	Unit	Status
Von Mises Stress at base, svb(actual)	211.7	MPa	OK

Combined Stress Check

Parameter	Value	Unit	Status
Axial Tension, fa	13.4	MPa
Allowable tensile stress, Ft	141	MPa
In plane bending stress, fbx	198.3	MPa
Allowable in plane bending stress, Fbx	141	MPa
Out of plane bending stress, fby	0	MPa
Allowable out of plane bending stress, Fby	176.3	MPa
Combined Stress Ratio	1.5		NOT OK

Weld Stress Check of Base Weld

Weld Dimension and Design Loads

Parameter	Value	Unit
Throat thickness, twt	7.07	mm
Total weld length, Lw	800	mm

Shear Stress at Base Weld

Parameter	Value	Unit	Status
Shear area of base weld, Asbw	5656.9	mm²
Shear stress at base weld - Horizontal (y direction), tsbwy(actual)	20.8	MPa	OK
Shear stress at base weld - Lateral (x direction), tsbwx(actual)	0	MPa	OK

Tensile Stress at Base Weld

Parameter	Value	Unit	Status
Tensile area at base, Atbw	5656.9	mm²
Tensile stress at base weld, stbw(actual)	4.7	MPa	OK

Bending Stress Check at Base Weld

Parameter	Value	Unit	Status
Section modulus of base weld about x-axis, zwbxx	56568.9	mm³
Total design bending moment about x-axis (in plane), Mdxx	1348.3	MTmm
Bending stress at base weld about x-axis(in plane), sbbwx(actual)	23.4	MPa	OK
Section modulus of base weld about y-axis, zwbyy	9428.2	mm³
Total design bending moment about y-axis (out of plane), Mdyy	0	MTmm
Bending stress at base weld about y-axis(out of plane), sbbwy(actual)	0	MPa	OK

Total Stress Check at Base Weld

Parameter	Value	Unit	Status
Total stress at base weld, scbw(actual)	28.1	MPa	OK

Weld Check of Cheek Plate Weld

Parameter	Value	Unit	Status
Throat thickness, twtc	5.66	mm
Weld length, Lwc	114.7	mm
Weld area of cheek plate, Awc	649.3	mm²
Design load on one cheek plate, Pdc	3.0769	MT
Weld stress at cheek weld, swc(actual)	46.5	MPa	OK