Just to precise my question:
I would like to calculation safety margin at one fastener which is localized at the corner of my panel. The flow which have to be transfered and which is taken from the dedicated FEM is Nx, Ny and Nxy (shear flow).
note: for current area (out of corners) the load...
A junction with a Nx and Nxy sollicitation can be easilly calculated: Ffasterner = square (Nx^2+Nxy^2) x pitch. What about vertice corner area on which the solliciation are (Nx, Ny and Nxy)? How do you make the combination of those flow to determine fastener shear load?