标题:Effects of temperature and strain rate on the forming limit curves of AA5086 sheet
作者:Zhang, Cunsheng; Chu, Xingrong; Guines, Dominique; Leotoing, Lionel; Ding, Jie; Zhao, Guoqun
通讯作者:Chu, XR;Chu, Xingrong
作者机构:[Zhang, Cunsheng; Ding, Jie; Zhao, Guoqun] Shandong Univ, Sch Mat Sci & Engn, Jinan 250061, Shandong, Peoples R China.; [Zhang, Cunsheng] Hunan Univ 更多
会议名称:11th International Conference on Technology of Plasticity (ICTP)
会议日期:OCT 19-24, 2014
来源:11TH INTERNATIONAL CONFERENCE ON TECHNOLOGY OF PLASTICITY, ICTP 2014
出版年:2014
卷:81
页码:772-778
DOI:10.1016/j.proeng.2014.10.075
关键词:Strain rate; Forming limit curves; Marciniak test
摘要:During the warming forming process of aluminum alloys, both temperature and strain rate have significant influences on sheet formability. However, current research regarding the effects of temperature and strain rate on the forming limit curves of aluminum alloys is still lacking. Due to the difficulty in carrying out the experiments for obtaining forming limit curves under dynamic forming conditions at elevated temperature, in this work, the method is proposed to investigate these effects by combining a modified Voce constitutive model (Lin-Voce model) with the numerical simulation of Marciniak test. On the basis of experimental data obtained by the tensile tests, the material parameters of Lin-Voce model are identified by the inverse analysis technique. Then, the proposed Lin-Voce model is verified by comparing numerical and experimental results obtained by Marciniak test. Finally, the numerical simulation of Marciniak test is carried out at different temperatures (100, 200 and 300 degrees C) and punch speeds (10, 750 and 1000 mm/s), and the effects of temperature and strain rate on the forming limit curves of AA5086 are investigated and discussed. (C) 2014 The Authors. Published by Elsevier Ltd.
收录类别:CPCI-S;EI;SCOPUS
WOS核心被引频次:2
Scopus被引频次:2
资源类型:会议论文;期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84949129542&doi=10.1016%2fj.proeng.2014.10.075&partnerID=40&md5=106fea45352ac73abc1b873a50ddc413
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