Parametric model order reduction has become an indispensable tool for computational-based design and optimization, statistical analysis, embedded computing, and real-time optimal control. In essence, it enables solutions to complex modeling problems in a fraction of the compute time. It is also essential for “what-if” scenarios where real-time simulation responses are desired.
Understanding the evolving state of the nearshore zone, e.g., ocean surface waves and seabed elevation, is crucial to many tactical decisions for naval operations, coastal infrastructure design and management, protection of the hinterland against flooding, shoreline management, and recreational safety.
The design of numerical algorithms at the most basic and fundamental levels, leverages mathematics, applied mathematics, and computer science disciplines. Real-world problems such as studying the effects of underbody blasts on motivate these methods for studying phenomena, such as solid material deformation, plasticity, and fracture, as well as interactions with fluids like air and water. These algorithms are as applicable to underbody blasts as they are to the design and analysis of ship wakes or to ordnance storage and detonation, wh
This project has two components. One component is to study the adhesion of blood platelets to an injured vessel site. This is a critical initial stage for the formation of a platelet plug to stop bleeding. The second component is to study the deposition of aerosol particles in the lungs to help study the effects of airborne pollutants, and infective and toxic agents.
Many of the challenges faced in the battlefield by the Army can be attributed to planning and strategic decision making. Optimal decision making in the battlefield is a complex problem that requires considering other actors, reasoning about uncertainty in how events may play out, and addressing the fact that strategies must be executed using noisy observations of the world.
The OS Friendly Architecture
Traumatic Brain Injury (TBI) is one of the primary causes of long term disability for the modern soldier. Improving the foam liners in the helmets used on the battlefield can reduce the risk of TBI to U.S. Soldiers. The objective of this research is the development of computational models for enhanced blast protection of soldiers using ballistic fabric. Computer simulation of textiles is difficult due to multiple size scales present in such materials.
The ability to conduct fast and reliable simulations of dynamical systems is of special interest to Army operations. Because such simulations can be very complex and involve millions of variables, it can be prohibitive in CPU time to run repeatedly on many different configurations. Reduced-Order Modeling (ROM) provides a concrete way to handle such complex simulations using a realistic amount of resources. However, uncertainty is hardly taken into account.
Problems in which solids, particularly metals, start to flow, or deform plastically, are ubiquitous in army applications, including traditional ballistic penetration problems of armor, structural integrity under fire, welding, and additive manufacturing processes.