Evaluation of an Acoustic Technique as a Nondestructive Method of Measuring UV Degradation of Nylon Rip-Stop Fabric

Abstract

To determine whether the frequency of the resulting vibration could be used as a nondestructive method of evaluating degradation, samples of nylon rip-stop fabric with varying degrees of UV degradation were suspended under tension and impacted. It was found that the generated frequency is dependent on several variables including the vibrating length of sample and the applied tension. The suitability of the technique as a nondestructive method could not be established in this study because of lack of a definable relationship between frequency and degree of degradation.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1979
Accession Number
ADA072817

Entities

People

  • Vasant K. Devarakonda

Organizations

  • United States Army Soldier Systems Center

Tags

DTIC Thesaurus Topics

  • Classification
  • Degradation
  • Engineering
  • Fabrics
  • Frequency
  • Materials
  • Materials Engineering
  • Materials Testing
  • Microphones
  • Nondestructive Testing
  • Oscilloscopes
  • Polymer Degradation
  • Security
  • Standards
  • Test And Evaluation
  • Test Methods
  • Vibration

Readers

  • Control Systems Engineering.
  • Materials Science
  • Structural Health Monitoring of Composite Structures.