NDLI: Roof strength performance improvement enablers

Content Provider	Springer Nature Link
Author	Cho, Y. H. Han, B. K.
Copyright Year	2012
Abstract	Before 2009, rollover in vehicle accidents had not been significantly studied not only because its rate is lower than other types of accidents but also because it had been easy to meet the rollover regulation, the FMVSS 216 Roof Crush Resistance target. The regulation only requires that the strength-to-weight ratio (SWR) be 1.5, i.e., it was acceptable when the roof could withstand a force of only 1.5 times the vehicle’s weight. In other words, rollover is not considered an important safety factor. However, presently, the situation has completely changed. Rollover is now considered a key safety factor. Recently, the number of rollover incidences has been increasing, reaching as much as the number of front, side and rear accidents. Furthermore, the IIHS has begun to require that the roof must withstand a force of 4.0 times the vehicle’s weight, a more severe restriction than FMVSS. To satisfy this requirement, many manufacturers, universities and institutes are studying the topic. This paper focuses on changing the body structure to minimize injury to the occupant when rollover occurs and help rollover safety performance become excellent. This paper draws on a simple analysis that is based on general factors: changes in the material, the addition of welds and additional reinforcements. The best result will be determined, as described by this paper.
Starting Page	775
Ending Page	781
Page Count	7
File Format	PDF
ISSN	12299138
Journal	International Journal of Automotive Technology
Volume Number	13
Issue Number	5
e-ISSN	19763832
Language	English
Publisher	The Korean Society of Automotive Engineers
Publisher Date	2012-07-28
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Top safety pick Rollover Strength-to-weight ratio (SWR) IIHS FMVSS 216 Revised FMVSS 216 Roof front header panel (RF FRT HDR PNL) Reinforcement Automotive Engineering
Content Type	Text
Resource Type	Article
Subject	Automotive Engineering

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Relationship of the roof strength resistance with the displacement of top-end of A-pillar in CRIS test

Effect of tumble-home on roof strength of a vehicle

Comments by (2008).

Results From Two Sided Quasi-Static (M216) And Repeatable Dynamic Rollover Tests (Jrs) Relative To Fmvss 216

1 observations from repeatable dynamic rollover tests.

Effectiveness of ECE R66 and FMVSS 220 standards in rollover crashworthiness assessment of paratransit buses

Roof strength analysis of a truck in the event of a rollover.

Measurement of roof deformation caused by vehicle rollover

Roof strength and injury risk in rollover crashes (2008).

Roof strength performance improvement enablers

Similar Documents

Relationship of the roof strength resistance with the displacement of top-end of A-pillar in CRIS test

Effect of tumble-home on roof strength of a vehicle

Comments by (2008).

Results From Two Sided Quasi-Static (M216) And Repeatable Dynamic Rollover Tests (Jrs) Relative To Fmvss 216

1 observations from repeatable dynamic rollover tests.

Effectiveness of ECE R66 and FMVSS 220 standards in rollover crashworthiness assessment of paratransit buses

Roof strength analysis of a truck in the event of a rollover.

Measurement of roof deformation caused by vehicle rollover

Roof strength and injury risk in rollover crashes (2008).

Roof strength performance improvement enablers