Analysis of Force Mitigation by Boots in Axial Impacts using a Lower Leg Finite Element Model.

Lower extremity injuries caused by floor plate impacts through the axis of the lower leg are a major source of injury and disability for civilian and military vehicle occupants. A collection of PMHS pendulum impacts was revisited to obtain data for paired booted/unbooted test on the same leg. Five sets of paired pendulum impacts (10 experiments in total) were found using four lower legs from two PMHS.

A novel bridge wire model of blast traumatic brain injury - biomed 2013.

Research into the mechanics of blast-induced traumatic brain injury requires a device capable of reproducing pressures of the same magnitude and time scale as a blast wave. A blast simulator based on the exploding bridge wire mechanism was created with these capabilities. Peak blast pressures in the range of 5 – 29 psi were generated with a positive phase duration less than 20 µs.

Vibrational frequency response to impact loading of skull models.

More than 73% of soldiers returning from duty are injured by explosive devices. The shock waves generated are believed to cause injury via intracranial pressure and skull flexure. Prior modal analyses of spherical shells as skull substitutes using analytical solutions to the wave equation indicate the impact point and opposite side as areas of intense bending.

Evaluation of the Accuracy of NASS/CDS Delta-V Estimates from the Enhanced WinSmash Algorithm.

The National Automotive Sampling System / Crashworthiness Data System (NASS/CDS) uses the WinSmash program to reconstruct changes in vehicle velocity for real world crashes. Vehicle change in velocity, or delta-V, is a measure of crash severity and a predictor of injury risk. Earlier studies have demonstrated that WinSmash 2.

NASS/CDS delta-V estimates: the influence of enhancements to the WinSmash crash reconstruction code.

The change in velocity (delta-V) crash severity metric in the NASS/CDS (National Automotive Sampling System / Crashworthiness Data System) is computed using the WinSmash crash reconstruction code. Beginning in 2008, NASS/CDS investigators have started to use an enhanced version of WinSmash, WinSmash 2008, which features a comprehensive vehicle specific library for over 5000 vehicle make-model-year combinations and updated categorical stiffness values. The use of WinSmash 2008 is expected to greatly improve delta-V estimates.

Influence of the missing vehicle and cdc only delta-v reconstruction algorithms for prediction of occupant injury risk - biomed 2009.

Delta-V, the change in velocity of a vehicle, is a widely used predictor of occupant injury in vehicle collisions. In real worldv crashes, delta-V is commonly estimated from measurements of vehicle deformation using absorbed energy based methods. The accuracy of these estimates is highly dependent on the availability of deformation measurements for both vehicles involved in a crash.

Numerical simulation of a cellular-level experiment to induce traumatic injury to neurons.

Previous research has developed a pneumatically driven device for delivering a controlled mechanical insult to cultured neurons. The neuronal cell culture was injured by applying a transient air pulse to a culture well fitted with a highly elastic Silastic culture well bottom. In response to the pressure pulse, he Silastic culture well bottom deformed, stretched the attached cell culture, and resulted in observable cell injuries and death.