F.8.4 Impact Attenuator - IA

F.8.4.1  Teams must do one of

• • a. Use an approved Standard Impact Attenuator from the FSAE Online Website

  • b. Build and test a Custom Impact Attenuator of their own design

F.8.4.2  The Custom Impact Attenuator must meet the following:

• • a. Length 200 mm or more, with its length oriented along the fore/aft axis of the Chassis

  • b. Minimum height 100 mm (perpendicular to the ground) and minimum width 200 mm (parallel to the ground) for a minimum distance of 200 mm forward of the Front Bulkhead.

  • c. Segmented foam attenuators must have all segments bonded together to prevent sliding or parallelogramming

  • d. Honeycomb attenuators made of multiple segments must have a continuous panel between each segment.

F.8.4.3 If the outside profile of the Front Bulkhead is greater than 400 mm x 350 mm, or the team uses the Standard Honeycomb Impact Attenuator, and then one of the two must be met:

• • a. The Front Bulkhead must include an additional support that is a diagonal or X-brace that meets F.3.2.1.b or Equivalent (integral or attached) for Monocoque bulkheads F.2.3.1

    1. 1. The structure must go across the entire Front Bulkhead opening on the diagonal

       2. Attachment points at both ends must carry a minimum load of 30 kN in any direction

• b. Physical testing per F.8.7.6 and F.8.7.7 must be performed to prove that the Anti Intrusion Plate does not permanently deflect more than 25 mm.  

Explanation