Accession Number:

ADA624505

Title:

Prognostic Health Management of DoD Assets

Descriptive Note:

Final rept. 13 Feb 2012-12 Feb 2015

Corporate Author:

NORTH CAROLINA AGRICULTURAL AND TECHNICAL STATE UNIV GREENSBORO

Report Date:

2015-06-01

Pagination or Media Count:

125.0

Abstract:

This proposed research will synergistically developed numerical models, experiments, algorithms, and other tools applicable to prognostic health management. The topics covered included 1 Characterize acoustic emission signals from different failure modes in composite materials, and identification of the features of critical damage, 2 Experimental characterization of the influence of attenuation on acoustic emission signals in carbon epoxy composite laminates 3 Characterization of acoustic emission signals during fatigue crack growth in aluminum panels, 4 Characterization of fretting related acoustic emission signals, in which acoustic emission characteristics were correlated with the features of the surfaces participating in the frictional process, 5 Identification for the first time the horizontal shear component of acoustic emission signals and designing sensors capable of detecting these components, along with securing a US patent on this sensor, 6 Development of a Multiagent based structural health monitoring system, 7 Development of a machine learning system for classifying acoustic emission signals, and 8 Supporting summer internships for three minority high school students during the summer of 2014 and another three minority high school students which is planned during the summer of 2015.

Subject Categories:

  • Laminates and Composite Materials
  • Computer Programming and Software
  • Acoustic Detection and Detectors
  • Acoustics
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE