Quantitative Diagnostics of Multilayered Composite Structures with Ultrasonic Guided Waves

Abstract

The main objective of the current work is to develop a practical nondestructive inspection methodology for a highly sound absorbing composite structural system consisting of polymeric and metallic materials. Due to constraints in geometrical shapes and thicknesses of the composite system used in this work, ultrasonic guided wave approach has been chosen. Since the polymer coatings have high damping properties, less energy is dissipated into the adjacent media in the presence of interface delaminations. Experimental measurements performed on a targeted composite system, whether it has an aluminum, carbon-fiber-composite, or steel outer casing, show promising results.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2014
Accession Number
ADA615759

Entities

People

  • Fritz Friedersdorf
  • Gheorghe Bunget
  • Jeon-kwan Na

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Aluminum
  • Carbon Fibers
  • Composite Materials
  • Composite Structures
  • Delamination
  • Fibers
  • Frequency
  • Inspection
  • Laminates
  • Materials
  • Materials Testing
  • Measurement
  • Signal Processing
  • Thickness
  • Transducers

Fields of Study

  • Materials science
  • Physics

Readers

  • Reinforced Composite Materials
  • Structural Dynamics.
  • Systems Analysis and Design