NONDESTRUCTIVE TESTING FOR VOID CONTENT IN GLASS-FILAMENT-WOUND COMPOSITES.

Abstract

Precise nondestructive methods for void determinations on glass-filament-wound composites in the form of rings and ring segments were tested for feasibility, with particular emphasis on the 0- to 3-volume-% void region. Experimental data related to void content are presented for several possibilities - infrared transmission, backscatter from laser transmission, density measurements, and corona discharge inception. The problems associated with these methods are discussed, and the feasibility of a nondestructive test method for void determinations on rings is demonstrated in comparison with destructive void results. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 04, 1968
Accession Number
AD0679573

Entities

People

  • B. E. Walker Jr.
  • C. T. Ewing
  • Roman R. Miller

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Backscattering
  • Composite Materials
  • Experimental Data
  • Filaments
  • Materials Testing
  • Measurement
  • Nondestructive Testing
  • Test Methods

Fields of Study

  • Physics

Readers

  • Plasma Physics.
  • Reinforced Composite Materials

Technology Areas

  • Directed Energy