Some ground crews for aircrafts are exposed to ambient noise levels up to 150 dB SPL: at these levels, conduction of sound through tissues is significant and may be responsible for hearing loss. Protecting the ear canal with earplugs and earmuffs cannotprevent damage caused by tissue-conducted… More

The advancement of shock mitigation technology is critical to the protection of fuzes in future penetrating weapons that are smaller and faster than current weapons. The first objective of this project during Phase II is to continue the research anddevelopment of three shock mitigation approaches,… More

The advancement of shock mitigation technology is critical to the protection of fuzes in future penetrating weapons that are smaller and faster than current weapons. The first objective of this project during Phase II is to continue the research anddevelopment of three shock mitigation approaches,… More

Certain weapons produce blast waves capable of trauma to gas-filled organs. There is an immediate need for a blast mitigation jacket to prevent lung damage when training with such weapons, and a similar need for combatants. Our first objective in PhaseII is to complete the research and development… More

Certain weapons produce blast waves capable of trauma to gas-filled organs. There is an immediate need for a blast mitigation jacket to prevent lung damage when training with such weapons, and a similar need for combatants. Our first objective in PhaseII is to complete the research and development… More

There is a need for a low profile, simple, accurate, localized, responsive sensor to measure shear stress in fluid flow. The unusual properties of the shape memory alloy Ni2MnGa suggest it could make a very sensitive sensor. In recent years,single-crystal films of this alloy have been grown by… More

Armors that provide protection against blast do so through a number of mechanisms. Simple elastic mechanisms include reflection of the blast wave because of the armor's high impedance relative to air, and distribution of energy over a large area by wave propagation through the armor. Non-linear… More

Using predictive tools developed in previous work, Dominca will design, build, and test layered-media filters to reduce the transmission of 2 kHz and higher frequencies into accelerometers that are used in explosive and impact events. The size of these external filters will be kept small by… More