caa a22 4500 463224787 CHVBK 20180405153223.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s10853-006-0347-6 doi (NATIONALLICENCE)springer-10.1007/s10853-006-0347-6 Experimental investigation on constitutive behaviour of superconducting powder BSCCO [Elektronische Daten] [Yinghong Zhao, Pan Zeng, Liping Lei, Hanping Yi] As a superconducting material, Bi 2233/Ag tape needs high-critical transport current density J c, which is influenced by the uniform deformation and density of BSCCO powder in filaments during the forming process. The aim of this paper is to investigate the constitutive behaviour of BSCCO powder. The modified Drucker-Prager/Cap model is introduced to describe the constitutive behaviour of BSCCO powder. A series of cyclic loading experiments for BSCCO powder in a cylinder die were carried out. Based on the experiments, the relationships between the radial stress and the axial stress were obtained, and the parameters in the constitutive model were calculated. By pushing the compact powder from the die, the coefficient of friction between the BSCCO powder and the cylinder die was determined. Finally, the modified Drucker-Prager/Cap model is proposed and used to simulate the confined compression test of BSCCO powder. Springer Science+Business Media, LLC, 2007 Zhao Yinghong Department of Mechanical Engineering, Tsinghua University, 100084, Beijing, P.R. China aut Zeng Pan Department of Mechanical Engineering, Tsinghua University, 100084, Beijing, P.R. China aut Lei Liping Department of Mechanical Engineering, Tsinghua University, 100084, Beijing, P.R. China aut Yi Hanping Innova Superconductor Technology Co. Ltd., 7 Rongchang Dongjie, Longsheng Industrial Park, 100176, Beijing, P.R. China aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/12(2007-06-01), 4692-4700 0022-2461 42:12<4692 2007 42 10853 https://doi.org/10.1007/s10853-006-0347-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0347-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhao Yinghong Department of Mechanical Engineering, Tsinghua University, 100084, Beijing, P.R. China aut NATIONALLICENCE 700 1- Zeng Pan Department of Mechanical Engineering, Tsinghua University, 100084, Beijing, P.R. China aut NATIONALLICENCE 700 1- Lei Liping Department of Mechanical Engineering, Tsinghua University, 100084, Beijing, P.R. China aut NATIONALLICENCE 700 1- Yi Hanping Innova Superconductor Technology Co. Ltd., 7 Rongchang Dongjie, Longsheng Industrial Park, 100176, Beijing, P.R. China aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/12(2007-06-01), 4692-4700 0022-2461 42:12<4692 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer