Accession Number : AD0778866

Title :   Fully Plastic Crack Problems: The Center-Cracked Strip under Plane Strain.

Descriptive Note : Interim rept.,

Corporate Author : HARVARD UNIV CAMBRIDGE MASS DIV OF ENGINEERING AND APPLIED PHYSICS

Personal Author(s) : Goldman,Neil L. ; Hutchinson,John W.

Report Date : FEB 1974

Pagination or Media Count : 35

Abstract : Crack problems are formulated for solids characterized by a pure power hardening relation between the stresses and the strains. For such problems there are simple functional relationships between the amplitude of the dominant crack-trip singularity, as measured by the path-independent J-integral, and the applied load, the load point displacement, and the crack opening displacement. The solutions are valid for both incremental and deformation theories of plasticity; they also apply to problems involving steady-state creep. Numerical results are presented for the center-cracked strip of finite width under plane strain conditions. A preliminary discussion is given of the applicability of the solutions to large scale yielding fracture mechanics. (Author)

Descriptors :   *Fracture(Mechanics), *Plastic properties, Numerical analysis, Creep, Deformation

Subject Categories : Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE