Daily Archives: July 16, 2012

N.C. A&T grant of the month: Monitoring strucutral integrity of armor, weapons

U.S. Army logoThe Sponsored Funding Report for June:

N.C. A&T received 23 grants totaling $17.19 million in June.

The complete list of grants received in June.

One highlight was a grant worth $616,956 from the Army Research Office to Dr. Mannur Sundaresan of the Department of Mechanical Engineering.  Dr. Albert Esterline of the Department of Computer Science also will work on the project.

The project: Prognostic Health Management of DoD Assets

The issue: Acoustic emission-based structural health monitoring techniques have great potential for determining the current state of health of critical structures, such as Army vehicles and weapons systems, and predicting their future performance.  However, current technology relies mostly on empirical approaches for interpreting AE signals, a technique that has been plagued by ambiguity and false positives.

With a better understanding of the physics of acoustic emission (AE) signal propagation and the development of signal processing techniques, AE-based techniques can play a larger role in developing highly efficient, adaptive, and survivable vehicles, armor, and machinery and the assurance of their safety and integrity.

Abstract:  This research will develop numerical models, experiments, algorithms, web architectures, and other tools applicable to prognostic health management. The research will address identification of critical damage states in composite structural elements and strategies for sensing such states with multiple sensors.

Continue reading