Experimental and Theoretical Studies of Creep Crack Growth.

Abstract

A two part research program was conducted to study the mechanics of creep crack growth in (1) nickel base superalloys as a function of alloy chemistry and test environment at 704 deg C; (2) a high strength aluminum alloy 2219-T851 at 175 deg C. The creep crack growth rate data is reported and analyzed in terms of fracture mechanics parameters. The automated test procedures used for the aluminum alloys are discussed in detail. An iterative model based on creep damage accumulation was derived to predict the creep crack growth rates.

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Document Details

Document Type
Technical Report
Publication Date
Mar 20, 1984
Accession Number
ADA141193

Entities

People

  • K. R. Bain
  • P. Bensussan
  • R. M. Pelloux

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Aluminum Alloys
  • Chemical Synthesis
  • Chemistry
  • Constitutive Equations
  • Creep
  • Fracture (Mechanics)
  • Grain Size
  • High Temperature
  • Materials
  • Materials Engineering
  • Materials Science
  • Mechanical Properties
  • Mechanical Working
  • Mechanics
  • Modulus Of Elasticity
  • Plastic Explosives
  • Tensile Strength

Fields of Study

  • Materials science

Readers

  • Economics
  • Mechanical Engineering/Mechanics of Materials.