Effect of cube texture on sheet metal formability

The effect of the cube texture on the initiation of localized necking is studied numerically. The forming limit diagram (FLD) is constructed based on crystal plasticity theory in conjunction with the well-known M–K approach. It is found that, while the ideal cube texture decreases formability, a spread about cube significantly delays the initiation of localized necking when a sheet undergoes biaxial tension. The effect of the cube texture on the predicted FLDs is discussed in terms of the sharpness of the yield locus near equi-biaxial tension.