Kevlar KM2 Yarn and Fabric Strength Under Quasi-Static Tension

Abstract

Kevlar KM2, 600 denier, was Instron tested in quasi-static, uniaxial tension to determine its strength. Specimens included both single yarns and 68-yarn-wide, single-ply strips of plain-woven fabric (Style 706). Never-woven single-yarn speciens were tested with varying degrees of initial twist. Strength of the untwisted, never-woven yarn was 2.66 +/= 0.04 GPa. The twist multiplier was 1.2. Single warp-oriented and fill-oriented yarns were extracted from Style 706 fabric, tested, and found to have strengths of 2.06 +/= 0.01 and 2.20 % 0.05 GPa, respeptively. The single-ply fabric specimens of both warp and fill orientations were tested and found to have strengths of 2.23 +/= 0.04 and 2.67 +/= 0.04 GPa, respectively. The strength effects of weaving, finishing, yarn extraction, and inter-yarn contact are discussed.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2002
Accession Number
ADA408883

Entities

People

  • Martin N. Raftenberg
  • Thomas J. Mulkern

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Human Systems
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aramid Fibers
  • Composite Materials
  • Construction
  • Corporations
  • Extraction
  • Fabrics
  • Fibers
  • Filaments
  • Load Cells
  • Materials
  • Materials Testing
  • Measurement
  • Mechanics
  • Military Research
  • Orientation (Direction)
  • Tensile Properties
  • Test Methods

Readers

  • Reinforced Composite Materials