MOORING BRIDLE PLATE OR PADEYE DESIGN VERIFICATION     1) GEOMETRY

Figure : Padeye     Figure: shackle

Length of Main Plate, L =
The length of the main plate should be longer than the diameter of the padeye to ensure the right geometrical shape of the padeye.
mm
Thickness of Main Plate,T = mm
Height to Pinhole, LA = mm
Diameter of Padeye hole, D = =
The hole diameter should be 3mm larger than the pin diameter to allow smooth entry.
mm
Diameter of Cheek Plate, dcheek = mm
Thickness of Cheek Plate, tcheek =
The thickness of the cheek plate should not be more than half the thickness of the main plate to ensure the right load transfer.
mm
Stiffener Length, Ls = mm
Stiffener Thickness, ts = mm
Shackle
Internal Length, C =
The Internal length of the shackle, measured from the outer diameter of the pin to the outer diameter of the shackle should be larger than the radius of the padeye.
22.4
mm
Internal Width, A =
The Internal width of the pin when fully locked should be between 2-6mm wider than the combined thickness of the main plate and 2 cheek plates.
9.7
mm
Eye Diameter, F =
The diameter of the cheek plate should be larger than the diameter of the shackle eye such that when fully locked, the entire eye is in full contact with the cheek plates.
14.2
mm
Pin Diameter, B =
Padeye hole to be 3mm wider than pin diameter.
mm
2) INPUT FORCES   In-plane angle, α = deg
Out-of-plane angle, β = deg
Padeye Material Yield Stress, Fyiel = MPa
Material Young's Modulus, E = 206000.0 MPa
3) RESULTS  SUMMARY
Bearing Stress  =
Block Shear =
Cheek Plate Weld Stress =
Shear Stress in Section A-A =
Tensile Stress Section B-B =

4) CALCULATIONS
Bearing Stress
Allowable Bearing Stress, 0.9Fyield = MPa
Bearing Stress = = MPa
Ratio =
Block Shear Ratio =
Cheek Plate Weld Stress
Min Weld Thickness Required = mm
Weld Thickness = mm
Effective Weld Thickness, t,weld e = mm
Weld Stress = = MPa
Ratio =
Shear Stress in Section A-A Allowable Shear Stress, 0.4Fyield = MPa
Shear Stress in Section A-A = = MPa
Ratio =
Tensile Stress in Section B-B Allowable Tensile Stress, 0.6Fyield = MPa
Tensile Stress in Section B-B = = MPa
Ratio =

Combined Stress in Section CC Shear Force, F2 = kN
Shear Stress, σshear = = MPa
Ratio =
Allowable Bending Stress, 0.6Fyiel = MPa
In-Plane Bending Stress, σip = = MPa
Ratio =
Allowable Bending Stress, 0.6Fyiel = MPa
Out-of-Plane Bending Stress, σop = MPa
Ratio =
Unity Check =