The strength of a fillet weld is determined by?

Question

The strength of a fillet weld is determined by?

Answer 1

The depth of the weld throat, the length of the weld, and the material.

Answer 2

Fillet Weld Strength

Answer 3

The strength of a fillet weld (or any other weld) = throat size X length X weld metal tensile strength



For example: a 5/16 fillet weld's throat = 0.707 X leg size

Throat size = 0.707 X 0.3125 = 0.220

therefore a 10 inch long 5/16 fillet weld welded with a 70000psi electrode will have the strength of:

0.220 X 10 X 70000= 154000 PSI - nominal strength

The effective strength of the weld depends also on the type of the load. Fillet welds are often loaded in shear which is the worst type of load (compression is the best, followed by tensile and shear is the worst). The shear strength is approx. 60% of the theoretical strength.

So if the above mentioned weld is subjected to shear load then the strength becomes:

0.60 X 154000 = 92400 PSI

Answer 4

I just happen to have my Welding Principles and Applications Sixth Edition collage book with me right now.. From back wen I was taking 2 years of welding, metallurgy, and blue printing.



As for your question, I do not need the book for it. Strength of your fillet weld is directly based on the type of filler metal used, and the amount of penetration, Fillet welds with not enough fill that are concave are normally weaker, wile fillets welds that are convex tend not to be any stronger, so extra filler metal is just a wast of money.



SO the answer to your question is penetration, and type of filler metal.

Answer 5

Design Rules for calculating the strength of butt and fillet welded joints subject to Direct, Bending and Torsional loadings. Plus guidance on calculating centroids and second moment of area.



The website below was very useful to me in school.

Answer 6

By following proper welding procedures.

Answer 7

Strength and integrity of the weld and its metal.