Why do fillet welds perform worse than butt welds?
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As the title suggests, let’s all contribute our ideas
Corner welds are structural discontinuities with high stress levels.
:Lol, the thickness of a fillet weld is not as great as that of a butt weld; moreover, in a fillet weld the force is applied on both sides of the gap, while in a butt weld the force acts on a flat surface
From a mechanical analysis perspective, there is tensile stress and bending stress; structurally speaking, one involves continuous and uniform stress distribution, while the other involves fluctuating and non-uniform stress distribution
Butt welds are subject to simple stresses – tensile/compressive stresses, while fillet welds are subjected to more complex stresses, including tensile/compressive and bending stresses; gaps at the junctions where these welds are located represent stress concentration points.