In a fillet welded joint, the weakest area of the weld is

In a fillet welded joint, the weakest area of the weld is Correct Answer Throat

Explanation:

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The fillet welds are subjected to tensile stress. The minimum cross-section of the fillet is at the throat. Therefore the failure due to tensile stress occurs at the throat section. Thus the weakest area of the weld is the throat.

One other approach is that the other parts of the weld are subjected to normal stress and shear stress. But in the throat in addition to both bending is also there which makes it weakest.

Related Questions

A double fillet welded joint with parallel fillet weld of length '$$l$$' and leg 's' is subjected to a tensile force 'P'. Assuming uniform stress distribution, the shear stress in the weld is given by
The tensile strength of the welded joint for double fillet is (where s = Leg or size of the weld, $$l$$ = Length of weld and $${\sigma _{\text{t}}}$$ = Allowable tensile stress for weld metal)