BARRIER EQUIVALENT VELOCITY, DELTA V AND CRASH3 STIFFNESS IN AUTOMOBILE COLLISIONS
Accident Investigators have occasionally and mistakenly assumed that the magnitude of the Change of Speed (delta V) during an auto collision is simply proportional to the post collision crush of the automobile. This paper reviews the introduction of the Vehicle Deformation Index, Collision Deformation Classification, Barrier Equivalent Velocity (BEV), Stiffness of the other vehicle, and the appropriate delta V. Presented are some practical worked examples deriving delta V and comparing it with crush and BEV for each deformed automobile. Change of Speed is also reviewed for crashes into deformable barriers and compared with post collision deformation and BEV. The crush magnitude of three types of non-symmetrical frontal collisions are studied and compared with BEV. The crash test stiffness of recent models and the CRASH3 crush parameters are compared.
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Supplemental Notes:
- Published in Field Accidents: Data Collection, Analysis, Methodologies, and Crash Injury Reconstructions P-159. International Congress and Exposition, Detroit, Michigan, February 25-March 1, 1985.
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Corporate Authors:
Society of Automotive Engineers (SAE)
400 Commonwealth Drive
Warrendale, PA United States 15096 -
Authors:
- Hight, P V
- Lent-Koop, D B
- Hight, R A
- Publication Date: 1985
Media Info
- Features: Figures; References;
- Pagination: p. 345-357
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Serial:
- Publication of: Society of Automotive Engineers, Incorporated
- Publisher: Society of Automotive Engineers (SAE)
Subject/Index Terms
- TRT Terms: Crash investigation; Crash tests; Crashes; Deformation; Frontal crashes; Stiffness; Testing; Traffic speed
- Uncontrolled Terms: Speed changes
- Old TRIS Terms: Crash3 /computer program/
- Subject Areas: Highways; Research; Safety and Human Factors; I80: Accident Studies;
Filing Info
- Accession Number: 00452062
- Record Type: Publication
- Source Agency: National Highway Traffic Safety Administration
- Report/Paper Numbers: SAE 850437, HS-039 242
- Files: HSL, TRIS, USDOT
- Created Date: Jan 31 1986 12:00AM