If the welding is carried out carefully, properly and professionally,
it can be assumed that the welded joint can withstand a greater static
load than the stud or component. The fracture occurs when the load limit
is exceeded outside the welding zone in the stud or in the base sheet
material.
Therefore, the characteristic values of stud and plate
are decisive for the strength calculation; the load-bearing capacity of
the weld does not have to be taken into account mathematically.
The
breaking force can thus be calculated from the minimum tensile strength
of the materials, see also Notes on the calculation of stud welds in
DVS 0967.
When calculating stud welded joints, a distinction must
be made depending on the case of application and the applicable rules
and regulations. A distinction is made between static or dynamic loads,
compression, tension, bending or torsion. The design of the studs must
therefore be carried out in such a way that the serviceability and load
safety of the entire component are guaranteed.
For bolts
according to DIN EN ISO 13918, the characteristic values for calculation
- the yield strength (Rp / fy,b,k) and the tensile strength (Rm /
fu,b,k) - are specified in the applicable material tables.
Calculation reference surface |
Abbreviations DIN EN ISO 13918 |
Stud Type |
Welding base diameter (smallest cross-section) |
RD |
Threaded studs with reduced base |
Stress Area |
Threaded Studs |
|
MD, PD, FD, PS, PT |
Threaded Studs |
Pin Internally threaded pin Shear Connectors |