A Study of the High Strain-Rate Behaviour of GRP Composites

Abstract

In this report a brief review of impact loading test methods suitable for testing composite materials is given. Results from two experimental studies undertaken to determine the dynamic behaviour of GRP composites under strain rates ranging from 40/s (low velocity) to 1000/s (high velocity) are presented. The strain rate of 40/s was achieved using a conventional dynamic tear test apparatus. A modified Hopkinson Bar was used to achieve strain rates of 1000/s and above in compression. Responses of two types of GRP composites to impact at these strain rates are compared in terms of their strength and energy absorbed capacity in fracture.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1998
Accession Number
ADA348487

Entities

People

  • G. Simpson
  • M. Z. Khan
  • Mark A. Taylor

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acquisition
  • Composite Materials
  • Data Acquisition
  • Dynamic Loads
  • Dynamic Tests
  • Fibers
  • Geometry
  • Glass Fibers
  • Impact Tests
  • Materials Laboratories
  • Materials Science
  • Materials Testing
  • Mechanical Properties
  • Modulus Of Elasticity
  • Stress Strain Relations
  • Stresses
  • Test Methods

Fields of Study

  • Materials science

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Structural Health Monitoring of Composite Structures.