Crack Growth-Based Predictive Methodologies for the Maintenance of structural Integrity of Repaired and Nonrepaired Aging Engine Stationary Components

Abstract

This report contains the results of work conducted by Pratt & Whitney between October 1994 and January 2001 under the Federal Aviation Administration contract to study the effect of aging on stationary engine components. The goal was to determine if long-term operation and multiple repairs affect the crack growth in engine-critical static structures and to provide a generic case management methodology to ensure continued airworthiness of these cases. The contract covers the evaluation of material crack growth properties in typically used case alloys, the ability to accurately predict crack growth in these components, a description of the risk assessment process, and provides a case management methodology for industry usage

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2003
Accession Number
ADA413252

Entities

People

  • George S. Hirko
  • Robert A. Mattern
  • Robert W. Hatala

Organizations

  • Pratt & Whitney

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Computational Fluid Dynamics
  • Computers
  • Failure Mode And Effect Analysis
  • Finite Element Analysis
  • Gas Turbines
  • Heat Transfer
  • Materials
  • Mechanical Properties
  • Mechanics
  • Monte Carlo Method
  • Repair Shops
  • Risk Analysis
  • Tensile Properties
  • Tensile Strength
  • Three Dimensional
  • Two Dimensional
  • Yield Strength

Readers

  • Aviation Safety Risk Assessment.
  • Facility/Structural Engineering.
  • Materials Science (Mechanical Engineering).