New Tensile and Compressive Test Specimens for Unidirectional Reinforced Graphite Epoxy Composites.

Abstract

The development of high strength and high modulus fibers for use as reinforcement in resin matrix composites has created problems in the area of mechanical testing. The difficulty appears when unidirectionally reinforced composites are tested in tension or compression using conventional test specimens with the test direction parallel to the fiber direction. Under these conditions failure normally occurs outside the gage section. Two new test specimens developed for determining tensile and compressive properties of unidirectional, graphite reinforced-epoxy composites when loading is parallel to the fiber direction are described. When these specimens were used to evaluate epoxy matrix composites reinforced with Morganite Type II graphite fiber, the failure always occurred in the gage section. (Author, modified-PL)

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1971
Accession Number
AD0886154

Entities

People

  • John C. Weidner

Organizations

  • University of Dayton

Tags

DTIC Thesaurus Topics

  • Composite Materials
  • Compression
  • Compressive Properties
  • Epoxy Composites
  • Graphite Epoxy Composites
  • Graphitic Materials
  • Unidirectional

Fields of Study

  • Materials science

Readers

  • Mechanical Engineering/Mechanics of Materials.