Kako izračunati Weld Strength
Što je Weld Strength?
Weld strength depends on metal, electrode, process, and joint design. Proper sizing ensures weld is stronger than base metal.
Formula
Calculate fillet weld capacity: P = 0.707×t×L×F_y (simplified)
- P
- 0 — 0
- L
- L value — Variable used in the calculation
Vodič korak po korak
- 1Calculate fillet weld capacity: P = 0.707×t×L×F_y (simplified)
- 2Butt weld strength equals base metal if properly made
- 3Account for loading direction and stress concentration
Worked Examples
Unos
Fillet weld size t=6mm, length L=100mm, steel Fy=250 MPa
Rezultat
P ≈ 106 kN capacity
Simplified allowable stress
Common Mistakes to Avoid
- ✕Using leg size instead of throat dimension
- ✕Over-sizing welds (unnecessary cost and distortion)
Frequently Asked Questions
Why is fillet weld size measured at 0.707t instead of full size?
Throat dimension (0.707× size) is the critical failure plane; leg dimension is measured size.
How does loading direction affect weld strength?
Welds strongest in shear along the weld axis; weakest perpendicular to axis.
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