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Improving Rollover Crashworthiness Through Inverted Drop Testing
ISSN: 0148-7191, e-ISSN: 2688-3627
Published October 01, 2001 by SAE International in United States
Annotation ability available
Inverted drop testing of vehicles is a methodology that has long been used by the automotive industry and researchers to test roof integrity. In our laboratory, the inverted drop test methodology was employed on late model production vehicles to simulate the damage incurred by a real world rollover accident. The extent and shape of residual damage matched well with the corresponding accident damage. Modified vehicles were reinforced based upon previously documented techniques. Incorporation of these techniques demonstrated a significant increase in roof strength and corresponding reduction in roof crush with minor weight addition. Finally, a production vehicle and structurally enhanced vehicle were drop tested with instrumented Hybrid-III occupants. This pair of tests confirms that reduction of roof intrusion and increased headroom can significantly enhance occupant protection. It also highlights the need to maintain adequate survival space for the vehicle’s occupants.
|Technical Paper||Accident Reconstruction of Rollovers - A Methodology|
|Technical Paper||The Relationship Between Vertical Velocity and Roof Crush in Rollover Crashes|
|Technical Paper||Strength Improvements to Automotive Roof Components|
CitationHerbst, B., Forrest, S., Meyer, S., and Hock, D., "Improving Rollover Crashworthiness Through Inverted Drop Testing," SAE Technical Paper 2001-01-3213, 2001, https://doi.org/10.4271/2001-01-3213.
- Rains, G. Van Voorhis, M.A. 1998 “Quasi Static and Dynamic Roof Crush Testing,”
- Lilley, K Mani, A. 1996 “Roof-Crush Strength Improvement Using Rigid Polyurethane Foam,” SAE 960435
- Herbst, B. Forrest, S. Meyer, S.E. 1998 “Strength Improvements to Automotive Roof Components,” SAE 980209
- Herbst, B. Chng, D. Meyer, S. Forrest, S. “Reinforcing Automotive Roofs with Composite Materials” Paper No. 00SAF008, ISATA 2000 September 25–27 2000
- Meyer, S.E. Davis, M Forrest, S. Chng, D. Herbst, B. 2000 “Accident Reconstruction of Rollovers – A Methodology,” SAE 2000-01-0853
- Chng, D. Herbst, B. Meyer, S. Forrest, S. Davis, M. “An Analytical Method for Calculating Roof Stiffness Factors From Roof Performance During Dynamic and Quasi-static Loading Tests” Paper No. 00SAF007, ISATA 2000 September 25–27 2000
- Orlowski, K.A. Bundorf, R. T. Moffatt, E.A. 1985 “Rollover Crash Tests--The Influence of Roof Strength on Injury Mechanics,” SAE 851734
- Bahling, G.S. Bundorf, R.T. Kaspzyk, G.S. Moffatt, E.A. Orlowski, K.F. Stocke, J.E. 1990 “Rollover and Drop Tests -- The Influence of Roof Strength on Injury Mechanics using Belted Dummies,” SAE 902314
- Herbst, B. Forrest, S Chng, D. Sances, T. “Fidelity of Anthropometric Test Dummy Necks in Rollover Accidents,” Paper No. 98-S9-W-20, 1998 ESV Conference