F.8.7 Impact Attenuator Data -IAD

F.8.7.1  All teams must include an Impact Attenuator Data (IAD) report as part of the SES.

F.8.7.2  Impact Attenuator Functional Requirements
These are not test requirements

• • a. Decelerates the vehicle at a rate not exceeding 20 g average and 40 g peak

  • b. Energy absorbed must be more than 7350 J

When:

1. Total mass of Vehicle is 300 kg

2. Impact velocity is 7.0 m/s

F.8.7.3  When using the Standard Impact Attenuator, the SES must meet the following:

• • a. Test data will not be submitted

  • b. All other requirements of this section must be included.

  • c. Photos of the actual attenuator must be included

  • d. Evidence that the Standard IA meets the design criteria provided in the Standard Impact Attenuator specification must be included with the SES. This may be a receipt or packing slip from the supplier.

F.8.7.4  The Impact Attenuator Data Report when NOT using the Standard Impact Attenuator must include:

• • a. Test data that proves that the Impact Attenuator Assembly meets the Functional Requirements F.8.7.2

  • b. Calculations showing how the reported absorbed energy and decelerations have been derived.

  • c. A schematic of the test method.  

Explanation