Modern vehicle designs tested as part of US consumer information programs achieve high ratings for frontal crash protection. Research is needed to determine how these tests can be upgraded to further improve occupant protection in real-world frontal crashes. The present study is a detailed analysis of real-world cases with serious injuries resulting from frontal crashes of vehicles rated good f...

One of the vehicle subsystem where large advantage is expected in lightweight design is the bumper subsystems. Bumper subsystems are designed to prevent or reduce physical damage to the front or rear ends of passenger motor vehicles during collusion. In this paper, detail design aspects and method of analysis with particular reference to the application of composite materials to automotive fron...

BACKGROUND Side-impact airbags (SABs) are designed to protect the head and thorax during a side-impact motor vehicle collision (MVC). Research on the effectiveness of SAB deployment has been limited. The objective of this study was to assess the effectiveness of deployed SABs in reducing head and thoracic injuries during side-impact MVCs. METHODS The 2000-2009 National Automotive Sampling Sys...

1. Abstract This study pertains to practical application of the GA for industrial applications where only a limited number of simulations can be afforded. Specifically, an attempt is made to find the optimal allocation of the total simulation budget (population size and number of generations) for constrained multi-objective optimization. A study is conducted to seek improvements while restricti...

Nearside occupants in side impact crashes often sustain severe injuries resulting in significant economic burden. Continual advancements in safety technology, including reinforced door structures, torso and head curtain air bags, compatibility improvements and other advancements, attempt to provide increased protection to occupants in these side impact crashes. Despite these advancements, serio...

Abstract Topology optimization methods like the homogenization method are very efficient for statically and dynamically loaded structures, but the use of these methods for the topology optimization of crashworthiness structures runs into a lot of problems. Especially in structural contact problems, the optimization functions are not smooth and the use of local sensitivity information is not suc...

In vehicle crashworthiness design optimization detailed system evaluation capable of producing reliable results are basically achieved through high-order numerical computational (HNC) models such as the dynamic finite element model, mesh-free model etc. However the application of these models especially during optimization studies is basically challenged by their inherent high demand on computa...

Crash analysis simulation is now very important in automotive industry to assess crashworthiness and safety. In order acquire reliable crash results, precise material behaviors at intermediate strain rates should be used as input data. To derive the stress-strain curves various rates, a large number of experiments are needed, which costly time consuming. The present study aims determining sheet...

This paper investigates the relationship between a passenger car's year of registration and its crashworthiness and aggressivity in real-world crashes. Crashworthiness is defined as the ability of a car to protect its own occupants, and has been evaluated in single and two-car crashes. Aggressivity is defined as the ability to protect users travelling in other vehicles, and has been evaluated o...