Fillet Weld - Stress and Size Calculation 1

[beh188]

I know there are guidelines in ASME codes for fillet weld sizes, such as guidelines for fillet weld size when welding a pipe into a socket. However, does anyone know if there are formulas associated with calculating the stress experienced in a fillet weld of a given size for this or a similar application? I have always been curious how these fillet size recommendations have been developed. Would a simple shear calculation using the weld leg and circumference be valid?

 

[SnTMan]

beh188, see Sec VIII, Div 1, UW-15

Regards,

Mike

 

[metengr]

beh188;
Very simple approach, treat the fillet weld as a line and evaluate tensile and shear loads on the line. Once you apply knock-down factors for welds in shear and tension, you can size the weld based on throat and fillet leg.

 

[desertfox]

Hi beh188

try this site-

http://www.roymech.co.uk/Useful_Tables/Form/Weld_strength.html#Design_St

 

[Guest102023]

desertfox,

Many thanks for the great site, which links to other great sites.

 

[desertfox]

Hi brimstoner

Your welcome