Front impact attenuator design for a race car

Wheatley, Greg, and Zaeimi, Mohammad (2020) Front impact attenuator design for a race car. International Journal of Crashworthiness. (In Press)

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This paper outlines the design, analysis and physical testing of the material for the front impact attenuator for the Motorsports car. The material selected was a 20 mm thick panel of veiled polypropylene honeycomb. The design programme Solidworks was used to produce three impact attenuator geometries for analysis – a solid block, a three-tier pyramid and a four-tier pyramid. The impact attenuator was simplified to solid blocks specified with the honeycomb material strengths and tested in ANSYS 14.0. The simulations did indicate that the four-tier pyramid had the greatest energy absorption behaviours. Two full size prototypes were manufactured and destructively tested. The forcedisplacement curve determined that prototype MKII achieved total energy absorption of 7591 J. The average deceleration was 17.66 g and maximum deceleration was 30.58 g. The polypropylene honeycomb energy absorption and deceleration values comply with FSAE requirements.

Item ID: 64153
Item Type: Article (Research - C1)
ISSN: 1754-2111
Keywords: impact attenuator, finite element analysis, experimental testing, formula SAE, energy absorption
Copyright Information: © 2020 Informa UK Limited, trading as Taylor & Francis Group
Date Deposited: 25 Aug 2020 03:58
FoR Codes: 40 ENGINEERING > 4002 Automotive engineering > 400299 Automotive engineering not elsewhere classified @ 100%
SEO Codes: 88 TRANSPORT > 8801 Ground Transport > 880199 Ground Transport not elsewhere classified @ 100%
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