How do we know that only the flaps would rip out or jam and that the whole wing wouldn't break off?
Shear, strain and force couples/moments.
A 'freebody diagram' for the dam wing might reveal:
The flap down would cause an axial torque on the wing, i.e. induce a 'force moment?' (been awhile) which would 'shear stress' the wing right off. Before the wing actually shears though, you might get a 'permanent deformation' i.e. 'strain' on the wings components, meaning some of the structure may have stretched too far, thinned, and weaken'ed, and need replacement.
Yep, its been awhile but otherwise, check a school's bookstore engineering department for book on 'statics' (a pre-dynamics class.) Btw statics is a different class from statistics.
Microsoft:
Leave the Flaps down in microsoft flight sim and I think we lose the whole wing. Summed up, at '200 tick'... ms might only say 'you have crashed.'
I need to test this but no time atm...