Accession Number : AD0717752

Title :   An Experimental and Theoretical Study of the Parabolic Generalization for the Plastic Deformation of Metals.

Descriptive Note : Final rept. 1 Aug 66-31 Jul 70,

Corporate Author : JOHNS HOPKINS UNIV BALTIMORE MD DEPT OF MECHANICS

Personal Author(s) : Bell,James F.

Report Date : 31 JUL 1970

Pagination or Media Count : 25

Abstract : The results of several years of research are briefly described and shown to provide a solid experimental foundation for the subject of crystal plasticity. A unifying generalization has been established in the form of a linearly temperature dependent parabolic stress-strain function which is applicable to the finite deformation of many crystalline solids. The interrelation of this generalization with many topics of crystal plasticity is discussed. These topics include: the double slip deformation hypothesis for face-centered cubic single crystals; the polycrystalline aggregate theory; plane wave, incompressible dynamic plasticity; the finite deformation mode and transition structure; the quantized structure of zero point isotropic shear moduli; the Portevin - Le Chatelier effect; deformation of binary alloys; combined tension-torsion stress states; tensile plastic waves and dynamic plasticity at elevated temperatures. (Author)

Descriptors :   (*METALS, PLASTIC PROPERTIES), (*CREEP, THEORY), DEFORMATION, CRYSTALS, RHEOLOGY, STRESSES, BRASS

Subject Categories : Metallurgy and Metallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE