Accession Number : ADA331053

Title :   A Fracture Mechanics Based Approach for Quantifying Corrosion Damage, Tri-Service Committee on Corrosion Proceedings

Corporate Author : PURDUE UNIV LAFAYETTE IN SCHOOL OF AERONAUTICS AND ASTRONAUTICS

Personal Author(s) : Doerfler, Mark T. ; Grandt, Alten F., Jr. ; Bucci, Robert J. ; Kulak, Michael

PDF Url : ADA331053

Report Date : JUN 1994

Pagination or Media Count : 14

Abstract : A fracture mechanics based approach to quantify the influence of initial corrosion damage on structural integrity is described. This approach assumes that corrosion can be approximated by a geometric structural change consisting of a general thickness reduction combined with a localized stress concentration. These two parameters enable quantification of the damage and the application of fracture mechanics principles to corrosion. Several numerical examples of this concept are discussed and a test program, combined with inspection capabilities, is introduced.

Descriptors :   *SYMPOSIA, *CORROSION, *DAMAGE ASSESSMENT, THICKNESS, AIRCRAFT, FRACTURE(MECHANICS), RESIDUAL STRESS, INSPECTION, GEOMETRY, FATIGUE(MECHANICS), AIRWORTHINESS, STRESS CONCENTRATION, STRUCTURAL INTEGRITY.

Subject Categories : Properties of Metals and Alloys
      Aircraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE