Як розрахувати Weld Strength
Що таке Weld Strength?
Weld strength depends on metal, electrode, process, and joint design. Proper sizing ensures weld is stronger than base metal.
Формула
Calculate fillet weld capacity: P = 0.707×t×L×F_y (simplified)
- P
- 0 — 0
- L
- L value — Variable used in the calculation
Покрокова інструкція
- 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
Розв'язані приклади
Введення
Fillet weld size t=6mm, length L=100mm, steel Fy=250 MPa
Результат
P ≈ 106 kN capacity
Simplified allowable stress
Поширені помилки
- ✕Using leg size instead of throat dimension
- ✕Over-sizing welds (unnecessary cost and distortion)
Часті запитання
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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