Title: Physics of Car Crashes: Design Concepts for Safer Cars
Abstract: Abstract Motor vehicle crashes involve a rapid deceleration of the occupant compartment as kinetic energy is absorbed by crush of vehicle structures. In severe impacts with offset loading, intrusion of the occupant compartment can occur. This chapter summarizes injury risks in field accidents using NASS‐CDS for occupants with and without seat belt use by the vehicle and crash type. It also addresses ejection status (nonejected, partial, and complete ejection). The dynamics of a crash are explored assuming a Haversine acceleration to identify peak acceleration of the occupant compartment and stopping distance typical of government and consumer testing in front, side, and rear crashes. Injury criteria and human tolerances are provided for the family of Hybrid III adult, child, and infant dummies. The chapter includes a discussion of vehicle structures, stiffness, and compatibility. It concludes with an overview of occupant restraint systems and ride‐down benefits with belt pretensioners tightening the seat belts.
Publication Year: 2014
Publication Date: 2014-04-29
Language: en
Type: other
Indexed In: ['crossref']
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