F.7.9 Driver Harness Attachment

F.7.9.1  Required Loads

a. Each attachment point for the Shoulder Belts must support a minimum load of 15 kN before failure with a required load of 30 kN distributed across both belt attachments.

b. Each attachment point for the Lap Belts must support a minimum load of 15 kN before failure.

c. Each attachment point for the Anti-Submarine Belts must support a minimum load of 15 kN before failure.

d. If the Lap Belt and Anti-Submarine Belt mounting points are less than 125 mm apart, or are attached to the same attachment point, then each mounting point must support a minimum load of 30 kN before failure.
 

F.7.9.2  Load Testing

The strength of Lap Belt, Shoulder Belt, and Anti-Submarine Belt attachments must be proven by physical tests where the required load is applied to a representative attachment point where the proposed layup and attachment bracket are used.

a. Edges of the test fixture supporting the sample must be a minimum of 125 mm from the load application point (load vector intersecting a plane)

b. Test Load application of the Lap Belt and Anti Submarine Belts must be normal (90 degrees) to the plane of the test sample

c. Shoulder Belt Test Load application must meet:  

The angles are measured from the plane of the Test Sample (90° is normal to the Test Sample and 0° is parallel to the Test Sample)

d. The Shoulder Harness test sample must not be any larger than the section of the monocoque as built

e. The width of the Shoulder Harness test sample must not be any wider than the Shoulder Harness "panel height" (see Structural Equivalency Spreadsheet) used to show equivalency for the Shoulder Harness mounting bar 

f. Designs with attachments near a free edge must not support the free edge during the test

The intent is that the test specimen, to the best extent possible, represents the vehicle as driven at competition. Teams are expected to test a panel that is manufactured in as close a configuration to what is built in the vehicle as possible