Accession Number : ADA133206

Title :   Investigation of Fatigue Crack-Growth Resistance of Aluminum Alloys under Spectrum Loading.

Descriptive Note : Final rept. 1 Oct 81-30 Nov 82,

Corporate Author : NORTHROP CORP HAWTHORNE CA AIRCRAFT DIV

Personal Author(s) : Scarich,G V ; Bretz,P E

PDF Url : ADA133206

Report Date : Apr 1983

Pagination or Media Count : 187

Abstract : The purpose of this program is to obtain metallurgical guidelines and test methodologies for selection and development of spectrum fatigue resistant, high strength aluminum alloys for application to aircraft structures. Described in this report are the results of baseline characterizations of ten high strength aluminum alloys. Also described are results of fatigue crack-growth tests under two F-18 load spectra and under modifications of these spectra.

Descriptors :   *Aluminum alloys, *Loads(Forces), *Fatigue(Mechanics), High strength alloys, Airframes, Metallography, Crack propagation, Fracture(Mechanics), Strength(Mechanics), Microstructure, Test and evaluation

Subject Categories : Properties of Metals and Alloys
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE