Materials Screening Tests of the FOD Impact Design Technology Program. Task IV C.

Abstract

This report describes a study to develop screening tests to identify and evaluate candidate fan and compressor blade materials of aircraft engines which may possess superior foreign object damage (FOD) resistance. Tests were developed to determine the ballistic limit, local deformation characteristics, gross structural damage characteristics, and the fatigue strength of candidate blade materials. The data generated demonstrated that the screening tests utilized could rate and rank the candidate materials investigated. The materials investigated included 8A1-1Mo-IV and 6A1-4V titaniums, 410 stainless steel in the annealed and heat-treated conditions, a boron/aluminum composite, and a graphite/epoxy composite. Based on the results, the titanium alloys were superior followed by the stainless steel material. The composites showed very poor response to the screening tests and were ranked last. Equations were developed for each screening tests which can be used to determine the response of new candidate materials to foreign object damage. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1982
Accession Number
ADA119839

Entities

People

  • Robert S. Bertke

Organizations

  • General Electric

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Bending Stress
  • Charpy Impact Tests
  • Composite Materials
  • Energy Levels
  • Epoxy Composites
  • Fatigue Tests (Mechanics)
  • Foreign Object Damage
  • Graphitic Materials
  • Impact Tests
  • Launch Tubes
  • Materials
  • Mechanical Properties
  • Metal Matrix Composites
  • Test And Evaluation
  • Three Dimensional
  • Titanium Alloys
  • Turbines

Fields of Study

  • Materials science

Readers

  • Aerodynamics.
  • Psychometric Testing or Psychological Assessment.
  • Reinforced Composite Materials