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Expanded Polypropylene (EPP) - A Global Solution for Pedestrian Safety Bumper Systems
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 08, 2004 by SAE International in United States
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The paper outlines some novel approaches to designing pedestrian safe bumper systems using expanded polypropylene, EPP. Traditional advantages of EPP, such as multiple impact performance and resilience are evaluated in the light of compatibility between conflicting impact requirements. The performance criteria of pendulum, insurance and pedestrian impacts are met by integrating the absorber into the complete energy management system and by the optimisation of the EPP design and density. The necessary packaging space remains minimal through the efficient use of the strain characteristics of EPP. Concept ideas related to fore/aft dual density as well as geometry-based dual-density are outlined. The concepts, developed and tested on a full car system, illustrate how soft initial contact can be combined with a high energy absorbing capacity.
CitationMurata, S., Shioya, S., and Suffis, B., "Expanded Polypropylene (EPP) - A Global Solution for Pedestrian Safety Bumper Systems," SAE Technical Paper 2004-01-1703, 2004, https://doi.org/10.4271/2004-01-1703.
Data Sets - Support Documents
|Unnamed Dataset 1|
- “Improved Test Methods to Evaluate Pedestrian Protection Afforded by Passenger Cars (December 1998 with September 2002 Updates)” EEVC Working Group 17 Report
- Frank T. Kurz A. Pitzer M. Sollner M. “Development and Validation of Numerical Pedestrian Impactor Models” 4 th EUROPEAN LS-DYNA Users Conference