Background: Value of Corticosteroid Randomisation after Significant Head Injury (CRASH) prognostic model has not been assessed in children with traumatic brain injury (TBI). This study is designed to examine the value of CRASH model in prediction of 14-day mortality and 6-month unfavourable outcome of pediatric TBI. Materials and Methods: </stron...

More than half of fatalities to seat-belt-wearing drivers in frontal crashes occur at impact speeds below 55km/h. Pedestrians and other vulnerable road users are at risk at much lower speeds. The impact speed depends on the timing and degree of braking, if any, that occurs before the crash. The resulting impact speed is highly dependent on the initial travel speed. Small increases in travel spe...

Child occupants are considered very vulnerable in the case of vehicle accidents due to fact that their bodies not fully developed and thus they have a higher risk injury. Because this, child seats been be mounted on backseat 2 seating positions, facing rear or front it. This paper aims analyse two positions seat determine injury occupant using virtual simulation crash at different velocities mu...

To study the influence of crash pulse duration on injury risk, data of 272 real life frontal collisions with recorded crash pulses was used. 371 restrained occupants were included. It was found that compared with acceleration, the duration has a limited influence on injury risk. The study shows that the average pulse duration in cases with AIS2+ injuries was 7 % longer than in cases with AIS1 i...

Background A finite element (FE) model based on a 2012 Toyota Camry passenger sedan was developed through the process of reverse engineering by the Center for Collison Safety and Analysis (CCSA) researchers under a contract with the Federal Highway Administration (FHWA). The model can be downloaded from the library of FE vehicle models developed to support crash simulation efforts [1]. The mode...

A wide range of composite material forms are finding use in today’s aerospace, automotive, and other transportation industry segments. The Boeing 787 commercial airliner, unveiled in 2007, features over 50% carbon fiber composites by structural weight, while the entire structure of the Lamborghini Sesto Elemento supercar, unveiled in 2011, is made exclusively from carbon fiber composites [1-2]....

ABSTRACT This study examined the relationship between EuroNCAP ratings for body region protection and real world injury risk for 653 belted drivers in frontal crashes. It was also able to comment on further improvements in crash protection for post-EuroNCAP cars. Protection for the head and lower leg appeared good. In terms of life threatening injury, results showed a need to prioritise chest p...

The National Highway Traffic Safety Administration (NHTSA) routinely measures the force exerted on the barrier in crash tests. Thirty-six load cells on the face of the rigid barrier measure the force. This study examines the load cell barrier data collected during recent years of NCAP testing to determine how it can be used to assess vehicle compatibility in vehicle-to-vehicle front-to-side cra...

hroughout the evolution of military helmet systems, the amount of head-supported mass (HSM) worn by Army personnel has steadily increased. The U.S. Army Aeromedical Research Laboratory is working to establish recommended limits and guidelines for HSM that can be worn safely by soldiers. To support this effort, crash sled tests were conducted at APL’s Impact Biomechanics Facility. These tests, s...

This paper presents a new method for designing vehicle structures for crashworthiness using surrogate models and a genetic algorithm. Inspired by the classifier ensemble approaches in pattern recognition, the method estimates the crash performance of a candidate design based on an ensemble of surrogate models constructed from the different sets of samples of finite element analyses. Multiple su...