Failure of a Riveted Joint
A riveted combined may fail in any of the following manners or their combination:
Shearing of Rivets
The forces in the connecting members cause a direct uniform shear force across the cross-sectional area of the rivet. When the shear stress in the rivet cross-section reaches its maximum permissible value, τvf, failure is supposed to occur.
The resistance of a rivet within single shear is given by following equation :
Fs = (π/4) d .τ vf
where d is the total diameter of the rivet.
Sometimes, there can be two shearing planes when more than two plates are used. Resistance of a rivet failing in double shear is twice the above value.