Design and Testing of Small Composite Specimens.

Abstract

An experimental investigation was conducted to study the effect specimen size on the buckling strains of liminates subjected to low velocity projectile impact. The fiber composite selected was T3OO/52O8 graphite/epoxy system. The quasi-isotropic laminates tested had 16 and 32 plies. The results were compared with those of a 48-ply laminate tested elsewhere. Specimens of three different lengths with length to width aspect ratios of 1, 1.5 and 2 were also studied. The results show that (a) the specimen length does not have any significant influence on the buckling strains at failure caused by the projectile impact, (b) the influence of specimen thickness on the strains at failure would decrease as the velocity of the impacting projectile increases. (MM)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1981
Accession Number
ADA303134

Entities

People

  • Avva V. Sharma

Organizations

  • North Carolina Agricultural and Technical State University

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Aspect Ratio
  • Composite Materials
  • Databases
  • Energy Levels
  • Engineering
  • Epoxy Laminates
  • Experimental Data
  • Failure Mode And Effect Analysis
  • Graphitic Materials
  • Laminates
  • Materials
  • Mechanical Engineering
  • North Carolina
  • Sequences
  • Statistical Analysis
  • Structural Components
  • Test Methods

Fields of Study

  • Materials science

Readers

  • Structural Health Monitoring of Composite Structures.