TY - GEN TI - An experimental investigation of yield surfaces anisotropies T3 - Conference on Experimental Stress Analysis /58./ AU - Štefan, Jan AB - This contribution is dedicated to a rigorous experimental procedure for evaluation of yield surfaces of common metallic materials. This yield surface tracing procedure employs thin-walled tubular specimens to identify individual yield points of the material under arbitrary combinations of axial load and torque. A yield point is identified on the basis of a prescribed threshold for the effective plastic strain that is being continuously and fully automatically evaluated throughout the test. The experimental results generated with this tracing method are promising, leading to shapes of the yield surfaces conform with the von Mises criterion. The proposed methodology can effectively capture the YS shape. SN - 978-80-248-4451-0 UR - http://www.nusl.cz/ntk/nusl-432286 UR - http://hdl.handle.net/11104/0313117 A2 - Plešek, Jiří A2 - Ciocanel, C. A2 - Parma, Slavomír A2 - Feigenbaum, H. P. A2 - Marek, René LA - eng KW - metallic materials KW - experimental mechanics KW - directional distortional hardening KW - yield surface PY - 2020 PB - Ústav termomechaniky, Dolejškova 5, 182 00 Praha 8, http://www.it.cas.cz/ ER -