Kuinka laskea Weld Strength
Mikä on Weld Strength?
Weld strength depends on metal, electrode, process, and joint design. Proper sizing ensures weld is stronger than base metal.
Kaava
Calculate fillet weld capacity: P = 0.707×t×L×F_y (simplified)
- P
- 0 — 0
- L
- L value — Variable used in the calculation
Vaiheittainen opas
- 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
Ratkaistut esimerkit
Syöte
Fillet weld size t=6mm, length L=100mm, steel Fy=250 MPa
Tulos
P ≈ 106 kN capacity
Simplified allowable stress
Yleisiä virheitä vältettäväksi
- ✕Using leg size instead of throat dimension
- ✕Over-sizing welds (unnecessary cost and distortion)
Usein kysytyt kysymykset
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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