Testing Pad eyes
Testing Pad eyes
(OP)
Good afternoon all.
At this very moment i have a mountain of paper work in front of me regarding Padeyes. But no answers to my questions.
I need a chart/ standard to calculate the size of a pad eye. Think of eye in relation to plaat thickness and WLL. FOS can be calculated at a later date ( depending on use of said Padeye)
Any and all info is welcome.
Irishboots.
At this very moment i have a mountain of paper work in front of me regarding Padeyes. But no answers to my questions.
I need a chart/ standard to calculate the size of a pad eye. Think of eye in relation to plaat thickness and WLL. FOS can be calculated at a later date ( depending on use of said Padeye)
Any and all info is welcome.
Irishboots.





RE: Testing Pad eyes
RE: Testing Pad eyes
What I need to be able to do is check the pad eye/ lifting eye.
I have to know if the size of the hole is correct, the amount of metal between the hole and the top of the pad eye is sufficent to hold the WLL/ working load limit
The FOS/ factor of safety ;I can calculate at a later date.
All these tests will be done for an Offshore company and the standards must be heigh.
As for the welds.......I will leave that to the MPI boys and girls.
Kind regards
Paul
RE: Testing Pad eyes
Have a look at this link its shows how to size and check lifting lugs:-
http:/
desertfox
RE: Testing Pad eyes
http://www
Covers the design of Lifting Lugs/Pad-eyes/Pin-connected Plates
RE: Testing Pad eyes
Petrotrim Services
RE: Testing Pad eyes
You need to check you design at hole level and base level.
At hole level you need to check the bearing capacity due to the pin and also check shear pull out. Consider if you have an offlead on the shackle which will locally increase the applied stress. You may need cheek plates.
At hole level you need to check the plate for biaxial bending, shear and tension. These are generally a function of the angle at which the load is applied to the padeye.
Next is capacity of the weld at the bottom, followed by a check on the structure you are welding too. No point designing a padeye to suit a 35 tonne shackle if you intend to weld it to 4mm plate.
RE: Testing Pad eyes
Great tips. Will add and steal from each one to built a testing program.
Paul
RE: Testing Pad eyes
http://www