Accession Number:

ADA191229

Title:

Predictive Corrosion Modeling. Volume 1

Descriptive Note:

Final rept. Sep 1985-Jul 1987

Corporate Author:

LOCKHEED-GEORGIA CO MARIETTA

Personal Author(s):

Report Date:

1987-11-23

Pagination or Media Count:

60.0

Abstract:

This report for a program to develop a predictive corrosion model for aircraft summarizes the work completed in Task III. The corrosion rate equations and models developed in Task II were converted into a VAX-11 FORTRAN program which enables the analysis of specific points on the C-5 aircraft and, utilizing environmental factors and the time periods an aircraft has been at various Air Force bases, gives recommended times for inspection and maintenance. The FORTRAN computer program includes a crack growth module which calculates the remaining flight hours until a theoretical crack grows to half its critical length, a corrosion module which calculates the remaining hours until exposed aircraft alloys corrode to a depth of 3 mils, and a coating degradation module which computes the optimum time remaining until the next paint renewal or complete repaint operation. Volume I describes the program effort. Volume II contains computer program printouts. Keywords Corrosion modeling, Maintenance scheduling coating degradation, Predictive corrosion model, Fatigue crack monitoring.

Subject Categories:

  • Aircraft
  • Coatings, Colorants and Finishes
  • Properties of Metals and Alloys
  • Computer Programming and Software

Distribution Statement:

APPROVED FOR PUBLIC RELEASE