Page 119 - DJJ 40173 compile notes - E-BOOK NEW EDIT WITH INDEX_Neat
P. 119
Strength of Parallel Fillet Weld
L
Throat = a x cos45 o o
Throat = a x cos45
= 0.707 a
a a = 0.707 a
a a Failure Plane
• Fillet welds are usually fail in shear, where the shear failure occurs along a
plane through the throat of the weld
• Shear stress in fillet weld of length L subjected to load P
• The strength of a fillet weld is based on shear through the throat of the
weld
