Compression-after-Impact and Bend Fatigue Results of Glass/Epoxy Composites with Compliant Interlayer and Needling Interlaminar Enhancements

Abstract

In this work, we tested 2-D and 3-D woven S2-glass/SC-15 epoxy composite laminates with compliant interlayer and needling interlaminar enhancements for single impact performance, compression-after-impact strength, and bend and shear fatigue life. The interlaminar enhancements decreased the strength and stiffness of the material but improved the durability. Needling had a larger improvement in compression-after-impact strength than the compliant interlayer, while the compliant interlayer had a larger improvement in stress-versus-fatigue-life slope than the needling.

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Document Details

Document Type
Technical Report
Publication Date
May 22, 2017
Accession Number
AD1035223

Entities

People

  • Bradley D. Lawrence
  • Robert A. Haynes
  • Steven E. Boyd

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Biocomposites
  • Composite Materials
  • Compression
  • Epoxy Composites
  • Failure Mode And Effect Analysis
  • Fatigue Life
  • Fibers
  • Geometry
  • Laminates
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Testing
  • Mechanical Properties
  • Resilience
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Materials science

Readers

  • Structural Health Monitoring of Composite Structures.