Relationship Between the Maximum Schmid Factor of the Dominant Texture Component and Yield Strength

ABSTRACT This paper examines the possibility of accounting for rolling crystallographic texture in the strength analysis of aerospace structural components. The proposed approach is based on the evaluation of resolved shear stresses acting on specific crystallographic slip systems in accordance with the widely accepted dislocation mechanism of plastic deformation. An analysis was performed to investigate the relationship between the resolved shear stresses in active slip systems and the mechanical properties of specimens machined from a sheet of 1163 aluminum alloy at angles ranging from 0° to 90° relative to the rolling direction, with an increment of 15°. It is shown that, in the presence of a pronounced crystallographic texture, the yield strength corresponding to any specimen orientation with respect to the rolling direction can be determined from the Schmid factors of grains belonging to the dominant texture component.