Connect Ends Along/perp

That means Connect stiffeners along the stiffener definition line and Connect stiffeners perpendicular to the stiffener definition line.

In the first case the stiffener line will be intersected with other components (stiffeners, panel limits…). When the distance between the intersection point and the stiffener end point is less than the given tolerance the stiffener end point will be snapped to the intersection point.

Example for along:

Figure 6:6. Ordinary panel

Figure 6:7. Ordinary panel (enlarged)

Figure 6:8. Idealized panel

Figure 6:9. Idealized panel (enlarged)

In the other case a line in a stiffener end point perpendicular to the stiffener line will be intersected with other components. When the distance between the intersection point and the stiffener end point is less than the given tolerance the stiffener end point will be snapped to the intersection point.

Example for perpendicular

Figure 6:10. Ordinary panel

Figure 6:11. Ordinary panel (enlarged)

Figure 6:12. Idealized panel

Figure 6:13. Idealized panel (enlarged)

Cases, in which the distance is more than the keyed in value, are not handled in the idealisation but later in the FE modelling. The stiffener line will be extended and divides the shell element it belongs to.

Example:

Figure 6:14. Ordinary panel

Figure 6:15. Idealized panel

Figure 6:16. FE Model