This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Quick Prototype Methodology for Low Offset Thermoplastic Pedestrian Energy Absorbers
Technical Paper
2006-01-1659
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
This paper describes a methodology to prototype and validate thermoplastic energy absorbers in a broad range of vehicle geometries. The objective of this prototype tool designed with quick prototype methodology is to achieve ready PC/PBT energy absorber designs for pedestrian testing. Generic vehicle models were used to finalize the energy absorber design features. The prototype tool was designed from optimized energy absorber designs that meet pedestrian performance in low packaging space, typically 45–60 mm. A set of prototype tools is being built to match different beam heights and packaging spaces. The tool has also the functionality of achieving different thickness and different design features using the latest manufacturing technologies. A full energy absorber can be built from individual lobes over the width of the car. The finalized design combined with ‘quick prototyping’ methodology was used to finalize the mold design, which can cater to a wide range of vehicle geometries. The prototype designs were validated for different virtual car models. Correlation test was performed between FEA models and prototype molded parts using equivalent rigid impactor test.
Recommended Content
Authors
Citation
Garg, A., Surisetty, G., Shuler, S., Mahfet, M. et al., "Quick Prototype Methodology for Low Offset Thermoplastic Pedestrian Energy Absorbers," SAE Technical Paper 2006-01-1659, 2006, https://doi.org/10.4271/2006-01-1659.Also In
References
- “Improved Test Methods to Evaluate Pedestrian Protection Afforded by Passenger Cars” 1998 EEVC Working Group
- Shuler, S. Mooijman F. Nanda. A. “Bumper Systems Designed for Both Pedestrian Protection and FMVSS Requirements: Part Design and Testing,” SAE paper 2004-01-1610
- Shuler, Stephen Mooijman, Frank Nanda, Alok Surisetty, Gopi “Improved Energy Absorber and Vehicle Design Strategies for Pedestrian Protection” SAE paper 2005-01-1872
- Nanda, Alok Surisetty, Gopi Mohapatra, Subhranshu Shaleena AD “ Method for designing and evaluating Pedestrian Protections Energy Absorbers for various car geometries” SAE paper 2004-01-1702
- LS-DYNA Keyword User’s Manual April 2003