Section cuts are useful for obtaining the resultant forces which act within a specified section-cut plane.
Section cuts may be defined using any of the following methods:
Each of these section-cut types may be implemented through the procedures described in the following sections:
Section-cut forces are the sum of joint forces for all joints which are:
Joint forces are then summed about the location specified as the Results Reported at the Location parameter.
The procedure for defining a quadrilateral cutting plane is as follows:
Figure 1 - Define a quadrilateral cutting plane
Figure 2 - Section-cut forces
Section cuts may also be defined by specifying a group of structural objects. Here, section-cut forces represent the sum of joint forces within those frame, shell, and link objects which are included in the group. As shown in Figure 2, the Section Cut Group must include All joints for which forces should be summed.
Figure 3 - Section-cut group
Section cuts may be drawn within the graphical user interface by selecting Draw > Draw Section Cut. Section-cut forces will then be displayed on the Section Cut Forces and Stresses form shown in Figure 3:
Figure 4 - Directly drawn section cuts