Simple Measurement of Plastic Anisotropy for Tube

摘要

It is valuable for tube forming to apply more precise material property that is considered planar anisotropy on tube wall. The tension test is generally useful to measuring planar anisotropy of a large tube, which is difficult for the tube with small diameter. T. Kuwabara et al. are precisely measured the contour of plastic work by using biaxial tension test for tube. In this report, we measured planar anisotropy of tube and determined anisotropic coefficients for a couple of anisotropic yield criteria by using a small-cube compression test.