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I'm a Mechanical Engineer trying to

I'm a Mechanical Engineer trying to

(OP)
I'm a Mechanical Engineer trying to calculate an easy eccentric bolted connection in a lifting lug.

The problem is the bearing stress.

Case 1: We will have a failure by bearing in the connections between the shackle (1) and the hole (2).

Case 2: We will have bearing problems between the bolts (3) and the main structure (4).

For case 1: Pn = (1.8 * Fy * Apb)/2 Per Steel design William T Segui.

For case 2: Rn = 1.2 Lc * t * Fu <= 2.4 * d * t*Fu Per Steel design William T Segui.

I really don't understand how this equations are so different?

I appreciate you help.

RE: I'm a Mechanical Engineer trying to

Wrong forum.

Your questions have nothing to do with composite materials.

Suggest posting in Mech Eng forum.

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