On finite deformation of F.C.C. crystals in (110) channel die compression
The characteristic behavior of f.c.c. crystals in the (110) channel die compression test is loading-axis stability. The lattice either rotates about the (110) loading direction or is stable relative to the channel axes, dependent upon constraint direction and active slip systems. Herein we establish a general theoretical basis for the initial finite deformation behavior that encompasses the full range of crystal orientations under (110) loading. We also make detailed analyses of crystal shearing, lattice rotation, slip-systems hardening, and constraint stress for orientations near a nominal (110) \((1{\bar 1}{\bar 2})\) \(({\bar 1}1{\bar 1})\) experimental orientation, based upon three specific hardening theories, and make comparisons with the experimental data to a compressive strain of one.
scientific article; zbMATH DE number 4041376