Accession Number:

ADA413252

Title:

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

Descriptive Note:

Final rept.

Corporate Author:

PRATT AND WHITNEY EAST HARTFORD CT

Report Date:

2003-01-01

Pagination or Media Count:

320.0

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

Subject Categories:

  • Aircraft
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE