Page 126 - DJJ 40173 compile notes - E-BOOK NEW EDIT WITH INDEX_Neat

◦ The strength of the weld deposit is more than the strength of the connected
parts under the following condition (VB Bhandari)

1. The component are made of mild steel with less than 0.3% carbon

2. The welding electrode contain 0.15% carbon

3. The electrodes are coated, resulting in shielded welding (protect weld

area during cooling process)

◦ Weld Design Stress by Jennings- The failure of the fillet weld is usually due to
shear at the throat area of the weld. The permissible stresses for a fillet welds

are permissible shear stresses for any direction of applied load

Types of Weld and Permissible Stresses (N/mm )
2
Stress Static Load Reverse Load
Butt Welds

Tension 110 55

Compressin 125 55

Shear 70 35

Fillet Weld 95 35