Damage Monitoring in Metallic and Composite Structures Using Piezoelectric Thin Film Sensors

Abstract

The increasing emphasis on intelligent material systems and structures has resulted in a significant research effort in the areas of embedded and bonded sensors and actuators. Piezoelectric film are one of the many sensing materials available. The piezoelectric sensor output is proportional to changes in surface displacement and can be used to interpret variations in structural and material properties, e.g., the compliance of the structure. The aim of this paper is to demonstrate the use of piezoelectric film sensors as a structural integrity monitoring device for detecting damage in fibre reinforced composites, and crack growth in aluminum alloy specimens.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1993
Accession Number
ADA268733

Entities

People

  • S. C. Galea
  • W. K. Chiu

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Aluminum
  • Aluminum Alloys
  • Composite Materials
  • Composite Structures
  • Department Of Defense
  • Detectors
  • Far Field
  • Fasteners
  • Films
  • Laminates
  • Materials
  • Materials Laboratories
  • Mechanical Properties
  • Metals
  • Monitoring
  • Piezoelectric Sensors
  • Thin Films

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Materials Science and Engineering.
  • Optical Fiber Sensing and Electromagnetic Propagation.