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 theirapplication to monitor large structural areas by means of a radar-scanning technique. This research effort resulted in the production of one doctoraldissertation, which is enclosed with the final performance report. The major contributions resulting from this study are the design and analysisformulation, 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 G Wfor structural inspection. By employing a radar-like scanning technique, where each segment is sequential ly activated, the device is able to providecomplete structural coverage (360 range) from a central location.

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Document Details

Document Type
Technical Report
Publication Date
Aug 31, 2009
Accession Number
AD1026461

Entities

People

  • Carlos E. Cesnik

Organizations

  • University of Michigan

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Air Force
  • Composite Materials
  • Composite Structures
  • Damage Detection
  • Detection
  • Directional
  • Excitation
  • Fabrication
  • Geometry
  • Laminates
  • Materials
  • Materials Processing
  • Materials Science
  • Metal Matrix Composites
  • Michigan
  • Models
  • Monitoring
  • Phase Velocity
  • Piezoelectric Materials
  • Radar Scanning
  • Steering
  • Structural Health Monitoring
  • Transducers
  • Universities
  • Wave Propagation

Readers

  • Acoustical Oceanography.
  • Medical Imaging.
  • Structural Dynamics.