Elastic-Plastic Fracture Toughness (J sub IC) of High-Strength Steels and Titanium Alloys.

Abstract

The elastic-plastic fracture toughness parameter J sub IC has been determined for HY 80, HY 130, 10 Ni steel, 17-4PH steel, and titanium alloys Ti-6Al-2Cb-1Ta-0.8Mo, Ti-7Al-2Cb-1Ta, and Ti-6Al-4V. Tests were carried out at room temperature by use of a multiple-specimen test method and a newly developed single-specimen computer interactive test procedure. J sub I is shown to be an effective parameter in describing fracture toughness on the basis of both crack initiation and crack-growth resistance. The computer interactive test procedure is shown to produce equivalent results when compared with the multiple-specimen test method and possesses distinct advantages over that method. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1978
Accession Number
ADA056091

Entities

People

  • James A. Joyce
  • John P. Gudas

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Alloys
  • Computational Science
  • Computers
  • Engineering
  • Ferrium
  • Fracture (Mechanics)
  • Geometry
  • J Integrals
  • Materials
  • Mechanical Properties
  • Mechanics
  • Resistance
  • Tensile Strength
  • Test Methods
  • Titanium
  • Titanium Alloys
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Materials Science (Mechanical Engineering).
  • Metallurgy