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Figure 4.5

The main issues of the calculations for a cut and crushing are
studied on the example of rivet connection (fig.4.4). On the surface
a rivet contacts with the sheet, thus, contact stresses arise that
indicate  - normal crushing stresses (fig. 4.5, a). They are
cr
distributed evenly along the surface of the rivet. In the calculation
conditional stresses are introduced that evenly distributed over the
area of diametric section (fig. 4.5, b). This conditional stress in its
value is close to the largest actual crushing stress on the contact
surface.
The distribution of tangential stresses arising in the cross-
sections of the rivet can be very complex and difficult to define. In
a simplified (conditional) calculation the tangential stresses are
believed to be distributed evenly on the cut planes of the rivet (fig.
4.6). Note that depending on the design of the connection there
may be one or more cut planes.
When calculating the connections containing several rivets they
believe that efforts are transmitted uniformly to all rivets.

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