Development of a Dovetail Fretting Fatigue Fixture for Turbine Engine Materials (Preprint)

Abstract

A unique dovetail fretting fatigue fixture was designed and evaluated for testing turbine engine materials at room or elevated temperatures. Materials from the cold section and hot sections of military turbojet engines were chosen for testing. The new fixture was improved over the previously used dovetail fretting fatigue fixture by including direct measurement of contact forces, alignment control, and elevated temperature capability. Measurement of the shear component of the contact force was validated through an alternative instrumentation method. Initial tests reveal interesting variability in the behavior of the nickel based superalloy specimens.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2006
Accession Number
ADA461732

Entities

People

  • Patrick J. Golden

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Aircrafts
  • Engines
  • Fretting
  • Friction
  • Instrumentation
  • Load Cells
  • Materials
  • Measurement
  • Mechanics
  • Military Research
  • Strain Gages
  • Turbine Components
  • Turbines
  • Turbofan Engines
  • Turbojet Engines

Readers

  • Aerospace Engineering
  • Systems Analysis and Design
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).