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AlON A-Pillars: Enhancing Passenger Safety and Driver Visibility
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 01, 2014 by SAE International in United States
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With the ever increasing emphasis on vehicle occupant safety, the safety of pedestrians is getting obscured behind the A-pillars that are expanding in order to meet the federal roof crush standards. The serious issue of pillar blind spots poses threats to the pedestrians who easily disappear from driver's field of view.
To recognize this blinding danger and design the car around the driver's eye, this paper proposes the implementation of Aluminum Oxynitride marked under name AlON by Surmet Corporation for fabrication of A-pillars that can allow more than 80% visibility through them.
AlON is a polycrystalline ceramic with cubic spinel crystal structure and is composed of aluminum, oxygen and nitrogen. With hardness more than 85% than sapphire, its applications range from aerospace to defense purposes which qualify it in terms of strength and thus imply that it can be conveniently used as A-pillars in vehicles. Furthermore, it possesses characteristics of being bonded to metals as well. Thus, AlON proves out to be an ideal material for applications requiring high -strength light-weight durability and transparency.
The modeling of ALON A-pillars is done in ANSYS 13 in accordance to the regulations for qualification for good roof strength rating.
The in-depth study of mechanical and optical properties of the material strongly favor the use of this material and emphasizes upon the fact that primary safety of avoiding the crash at the first place and secondary safety of minimizing the impact of the crash must go hand in hand.
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CitationRawat, S. and Das, S., "AlON A-Pillars: Enhancing Passenger Safety and Driver Visibility," SAE Technical Paper 2014-01-0806, 2014, https://doi.org/10.4271/2014-01-0806.
- Bengt Pipkorn, Jesper Lundström, Mattias Ericsson, “Safety and Vision Improvements by Expandable A-pillars”, Paper Number 11-0105.
- ALON Product sheet by SURMET.
- Warner Charles T., Hartnett Thomas M., Fisher Donald, Sunne Wayne, “Characterization of ALON™ Optical Ceramic”, SPIE Proceedings Vol 5786, Window and Dome Technologies and Materials IX.
- Wahl Joseph M., Hartnett Thomas M., Goldman Lee M., Twedt Richard, et al., “Recent Advances in ALONTM Optical Ceramic”.
- Paine Michael P., McGrane Donal, Haley Jack, “Offset Crash Tests-Observations about vehicle design and structural performance”, Paper Number 98-Sl-W-21.
- Guang Dong, Dazhi Wang, Jinhuan Zhang, Shilin Huang, “Side Structure Sensitivity to Passenger Car Crashworthiness during Pole Side Impact”, TSINGHUA SCIENCE AND TECHNOLOGY, ISSN 1007-0214 09/18 pp290-295, Volume 12, Number 3, June 2007.
- Forward Looking Blindspots: A Report of A A-Pillar Induced Field of Obstruction and Driver Performance in a Simulated Rural Environment.
- Ramu, B., Khurana, R., and Sharma, P., “An Alternate Methodology to Measure the A-Pillar Obstruction in Passenger Cars,” SAE Technical Paper 2013-26-0030, 2013, doi:10.4271/2013-26-0030.
- Fan, W. and Jettner, E., “Light Vehicle Occupant Protection - Top and Rear Structures and Interiors,” SAE Technical Paper 820244, 1982, doi:10.4271/820244.
- Huang, L., Kuo, M., and Yan, B., “AHSS Application in Roof Strength,” SAE Technical Paper 2007-01-0339, 2007, doi:10.4271/2007-01-0339.
- Li Guolin, Sui Jun, Zheng Xiang, Li Honghua, Zhao Fuquan, “A Pillar Structure Optimization Design of Driving Safety”, FISITA 2012 World Automotive Congress, Volume 195, 2013, pp 571-578.