Fracture Toughness of Stretched Acrylic Plastic,

Abstract

This paper presents the method and result of a parametric study of instability toughness, as measured by the critical stress intensity factor, Kc, of a multiaxially stress acrylic plastic. A large number of computer controlled tests were conducted on the compact tension specimen under high compliance loading/load control. These tests reveal the significant effects upon Kc of a wide range of loading rates and specimen thickness, and specimen geometry. A direct and immediate application of the results is the recommendation of a new fracture toughness acceptance test for these materials. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1976
Accession Number
ADA092978

Entities

People

  • Stephen A. Sutton

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acceptance Tests
  • Aircrafts
  • Computers
  • Crack Tips
  • Fracture (Mechanics)
  • Geometry
  • Instability
  • Intensity
  • Load Control
  • Materials
  • Mechanics
  • Standards
  • Stress Intensity Factors
  • Stresses
  • Test Methods
  • Thickness
  • Toughness

Readers

  • Materials Science (Mechanical Engineering).