Directional Guided Wave for Large Area Structural Health Monitoring

Abstract

The principal objective of this research project was the development of transducers for directional guided wave (GW) excitation and their application to monitor large structural areas by means of a radar-scanning technique. This research effort resulted in the production of one doctoral dissertation, which is enclosed with the final performance report. The major contributions resulting from this study are the design and analysis formulation, development of fabrication, and experimental tests of the Composite Long-range Variable-direction Emitting Radar (CLoVER) transducer. This new device is composed of independent, directional piezocomposite sectors capable of efficiently exciting highly directional GW for structural inspection. By employing a radar-like scanning technique, where each segment is sequentially activated, the device is able to provide complete structural coverage (360 deg. range) from a central location.

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Document Details

Document Type
Technical Report
Publication Date
Aug 31, 2009
Accession Number
ADA547291

Entities

People

  • Carlos E. Cesnik

Organizations

  • University of Michigan

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Composite Material Fabrication
  • Composite Materials
  • Damage Detection
  • Detection
  • Directional
  • Engineering
  • Excitation
  • Fabrication
  • Laminates
  • Materials
  • Materials Processing
  • Monitoring
  • Radar Scanning
  • Scanning
  • Structural Health Monitoring
  • Transducers
  • Wave Propagation

Readers

  • Materials Science and Engineering.
  • Sensor Fusion and Tracking Systems.
  • Technical Research and Report Writing.