Accession Number : AD0759351

Title :   Ductile Fracture Equation for High-Strength Structural Metals.

Descriptive Note : Final rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Judy ,R. W. , Jr. ; Goode,R. J.

Report Date : 03 APR 1973

Pagination or Media Count : 22

Abstract : Dynamic Tear (DT) test R-curves were developed to define the inherent resistance of structural materials to fracture in terms of the energy-per-unit extension required to cause rapid crack extension. Translation of the R-curve characterizations to useful form for design of structures to preclude fracture has been accomplished by the use of Ratio Analysis Diagram (RAD). R-curve concepts and RADs have been established for steels, aluminum alloys, and titanium alloys. (Author Modified Abstract)

Descriptors :   (*STEEL, FRACTURE(MECHANICS)), (*ALUMINUM ALLOYS, FRACTURE(MECHANICS)), (*TITANIUM ALLOYS, FRACTURE(MECHANICS)), GRAPHICS, TEST METHODS, CRACK PROPAGATION, DUCTILE BRITTLE TRANSITION, TRANSITION TEMPERATURE

Subject Categories : Metallurgy and Metallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE