文献类型：期刊文献

英文题名：Application of the cohesive zone model for analysing the edge crack propagation of steel sheet in the cold rolling process

作者：Zan, D. Q.[1];Sun, Q.[2];Pan, H. L.[1];Chen, J. J.[1];Wang, Z. D.[1]

机构：[1]East China Univ Sci & Technol, Key Lab Pressure Syst & Safety, Minist Educ, Shanghai 200237, Peoples R China;[2]Jiaxing Univ, Coll Mech & Elect Engn, Jiaxing 314001, Zhejiang, Peoples R China

年份：2017

卷号：40

期号：6

起止页码：869

外文期刊名：FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES

收录：;EI(收录号：20171803636218);WOS:【SCI-EXPANDED(收录号:WOS:000400608100002)】；

基金：This paper 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：cohesive zone model; cold rolling process; edge crack propagation simulation; finite element analysis

摘要：In the cold rolling process, the expansion and coalescence of micro-defects can make steel sheet quality descend and create edge crack in the steel sheet. And the edge crack can cause the strip rupture completely. In this research, the cohesive zone model (CZM) was used to analyse the initiation and propagation of edge crack in the cold rolling process with the non-reversing two-high mill. A bi-linear traction-separation law was utilized which is primarily given by the CZM parameters including the cohesive stress, T, and the cohesive energy, . Compared with other popular models such as the Gurson-Tvergaard-Needleman (GTN) model, the CZM presents certain advantages because it requires a smaller number of parameters to be defined. Comparison results of the experiments and simulation illustrated that the CZM can provide accurate prediction for the propagation of edge crack in the cold rolling process. Parametric analysis was carried out and showed that the extent of the crack propagation increases with the increasing of the reduction ratio.