Theoretical and experimental analysis of elaeto—plastic deformation in a uniaxially loaded strip of 2024 T3 rolled sheet material weakened by a central round hole

摘要

Strain and displacement measurements for a uniaxially loaded strip with a central round hole are described. The experiments were carried out in the elastoplastic domain of the material. Strains and displacements were measured with use of strain gauges and inductive displacement transducers respectively. The test data presented were compared with results of a TRIM6 finite element calculation. The computer program is based on the displacement method. Plasticity effects are described by a series fraction model. Uniaxial stress-plastic strain relations of the actual 2024 T3 unclad aluminium alloy are presented as well as the anisotropy factors. (Author)