Page 130 - Fundamental Of Design In Mechanical Engineering
P. 130
◦ 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
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