Page 45 - SSAB Welding Handbook Edition 2

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Welding handbook 7.0 Aspects regarding static strength in joints

For welded structures where there are specified
requests regarding static strength, the dimensions
©SSAB
and stresses in the joint are normally calculated
during the design of the welded structure.

For other joints than butt joints, such as fillet
joints, the actual strength may be more difficult
to determine in terms of static strength. In this
situation, the calculation of the static strengths in
the joint is often based on the throat thickness and
leg length, according to fig. 7.3. However, a deep
penetration of the weld metal will add strength to
this type of joint. The actual strength in the joint, a
therefore, is even higher compared to many types of z
calculations.

Key
z = The leg length, which is the side of the largest isosceles triangle
that can be inscribed in the section.
a = The troat thickness, which is the height of the largest isosceles
triangle that can be inscribed in the section.

Fig. 7.3: Appearance of a fillet joint.

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all liability of any kind, including any damages, in connection with the use of the information and for their suitability for individual applications. 45
It is the responsibility of the user of this brochure to adapt the recommendations contained therein to the requirements of individual applications.