The Fracture Energy of Composite Materials.

Abstract

The double torsion technique was employed to determine the fatigue behaviorof epoxy resin as it characteristically produces stable crack movement inbrittle materials. Preliminary results indicate the existence of an endurancelimit which is approximately 60% of the fracture load. During fatigue testing,there was a 12% increase in both the shear modulus and Young's modulus. Thefracture load also increased about 12%. These two effects may be due to astress induced cross-linking. (Author, modified-PL)

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1971
Accession Number
AD0718868

Entities

People

  • John O. Outwater
  • Michael C. Murphy

Organizations

  • University of Vermont

Tags

DTIC Thesaurus Topics

  • Composite Materials
  • Epoxy Resins
  • Films
  • Materials
  • Modulus Of Elasticity
  • Plastics
  • Reinforced Plastics
  • Resins
  • Shear Modulus

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Mathematics or Statistics
  • Mechanical Engineering/Mechanics of Materials.