Page 85 - 4749
P. 85

Figure 4.9

             From experiments it is known that bead weld destroyed by a cut
           in cross-section, which coincides with the bisector  AB  of the right
           angle. By working height of the bead we take the value
                                     h k  cos45   0,7k .
             Checking the strength of bead weld is done by the formula
                                          P
                                                 ,
                                        0,7kl     cut

             where  l  –  the total calculated length of all beads, which receive
           the force  P . The estimated length of the bead is taken on 10mm
           shorter than the actual length.
             The allowable stress on a cut for bead welds
                                       0,5 0,65     ,
                                    cut                t
             where     –  allowable tensile stress for the main material of
                     
                        t
           construction.

                                          85
   80   81   82   83   84   85   86   87   88   89   90