Analysis of the anisotropic behavior and of the formability aptitude for an AA2024 alloy using the channel die compression test and the simple tension test

摘要

The mechanical behavior of metallic materials during sheet forming processes must be related to their anisotropic properties and their formability aptitude. So, in this paper, channel die compression experiments are proposed to analyze the anisotropy of an AA2024 thick sheet. A modified quadratic Hill criterion based on the variation of the coefficients with the cumulated plastic strain is proposed. To compare and to validate the identified Hill coefficients values, classical tensile tests are also analyzed. The results are validated via finite element simulations of the tensile tests and channel die compression experiments using the commercial code LS-DYNA.