Effect of Transversely Low-Velocity Impact on Graphite/Epoxy Laminated Composites

Abstract

An investigation was performed to study the damage in Graphite/Epoxy laminated composites resulting from transversely low-velocity impact. Matrix cracking and delaminations were the primary concern of the study. This research was divided into two sequential steps: (1) characterization of impact damage, and (2) development of an analytical model for estimating impact damage in composites. A unique impact tester was developed for the study. The major characteristic of the tester is the design of a rectangular barrel so that the impactor can be designed in two parts: a nose and a base. Accordingly, different types of impact damage can be produced by appropriately selecting the nose shape of the impactor.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1990
Accession Number
ADA231964

Entities

People

  • Fu-Kuo Chang
  • Hyung-yun Choi

Organizations

  • Stanford University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Composite Materials
  • Failure Mode And Effect Analysis
  • Fiber Reinforced Polymers
  • Finite Element Analysis
  • Fish
  • Geometry
  • Graphitic Materials
  • Laminates
  • Material Degradation Processes
  • Materials
  • Mechanical Working
  • Mechanics
  • Modulus Of Elasticity
  • Stress Strain Relations
  • Three Dimensional
  • Two Dimensional
  • User Friendly

Fields of Study

  • Materials science

Readers

  • Reinforced Composite Materials
  • Structural Health Monitoring of Composite Structures.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).