Accession Number : AD0741712

Title :   The Significance of Material Ductility to the Reliability and Load Carrying Capacity of Peak Performance Structures.

Descriptive Note : Final rept. 1 Oct 70-31 Dec 71,

Corporate Author : SYRACUSE UNIV NEW YORK DEPT OF CHEMICAL ENGINEERING AND MATERIALS SCIENCE

Personal Author(s) : Weiss,Volker ; Sengupta,Mukulesh ; Lal,Dhirendra

Report Date : JAN 1972

Pagination or Media Count : 91

Abstract : The fracture ductilities are determined as a function of stress state for 2024- T4 Al, 7075-T6 Al, Ti-6Al-6V-2Sn (ann) Ti-2.5Al-16V (solution treated), AISI 4340 (R sub c=39, 53) and 250 grade maraging steel (48 R sub c). The studies concluded to date indicate that it is possible to achieve the objectives of developing design criteria against fracture on the basis of readily determinable material parameters. A discussion is given on the definition of the stress-strain relation exponent, n, in this context. The proposed analysis was applied to Al 2014-T6.

Descriptors :   (*ALUMINUM ALLOYS, FRACTURE(MECHANICS)), (*STEEL, FRACTURE(MECHANICS)), (*TITANIUM ALLOYS, FRACTURE(MECHANICS)), DUCTILITY, NOTCH SENSITIVITY, STRESSES, TENSILE PROPERTIES, VANADIUM ALLOYS, NICKEL ALLOYS, TIN ALLOYS

Subject Categories : Metallurgy and Metallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE