文献类型：期刊文献

英文题名：The initiation and propagation of edge cracks of silicon steel during tandem cold rolling process based on the Gurson-Tvergaard-Needleman damage model

作者：Yan, Yuxi[1,2];Sun, Quan[1,2];Chen, Jianjun[1,2];Pan, Hongliang[1,2]

机构：[1]E China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Minist Educ, Key Lab Pressure Syst & Safety, Shanghai 200237, Peoples R China

年份：2013

卷号：213

期号：4

起止页码：598

外文期刊名：JOURNAL OF MATERIALS PROCESSING TECHNOLOGY

收录：;EI(收录号：20140617267181);WOS:【SCI-EXPANDED(收录号:WOS:000315311300010)】；

基金：This work was financially supported by the Natural Science Foundation of China (51105143), the Fundamental Research Funds for the Central Universities (1114036) and Shanghai University Young Teachers Training Funds (YG0142129).

语种：英文

外文关键词：GTN model; Damage; Tandem rolling process; Edge crack; Silicon steel

摘要：Edge cracking is a commonly observed phenomenon during the cold rolling process of silicon steel, which may cause the rupture of strips in the rolling mill. In this paper the initiation and propagation of edge cracks under the tandem cold rolling condition were investigated by using the Gurson-Tvergaard-Needleman damage model. The damage parameters were obtained from the tensile tests data and the SEM analyses. Different cold rolling experiments were carried out by a non-reversing two-high rolling mill and the experimental results agreed well with the finite element calculation results. Parametric studies were carried out and revealed that the crack propagation increases with the increasing of total reduction, friction coefficient, and unit tension. A bigger work roll is beneficial to reduce the edge crack growth as well. (C) 2012 Elsevier B.V. All rights reserved.