Ductile fracture criterion for warm deep drawing of magnesium alloy sheet

被引：0
|
作者：
Chang, Qunfeng [1 ,2 ]
Peng, Yinghong [1 ]
Du, Zhaohui [1 ]
机构：
[1] School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China
[2] Beijing Aerospace Institute of Mechanical and Electronics, Beijing 100070, China
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2009年 / 45卷 / 10期
关键词：
Magnesium printing plates - Ductile fracture - Deep drawing - Finite element method - Magnesium alloys - Temperature - Numerical models;
D O I：
10.3901/JME.2009.10.294
中图分类号：
学科分类号：
摘要：
To resolve the technical difficulties of accurately deciding cracks in numerical simulation of warm deep drawing, a ductile fracture criterion of magnesium alloy sheet considering temperature effect is put forward. Based on the unidirectional tensile test and warm forming limit test, the material parameters are calculated by the combination method of experiment with FE simulation. Based on this ductile fracture criterion, the warm forming limit of AZ31 magnesium alloy sheet is forecasted. Finally, experimental verifications of limit drawing ratio are also performed. Research results show that the ductile fracture criterion considering temperature effect is suitable for the numerical simulation of warm deep drawing of magnesium alloy sheet, and the deformation mechanism of warm forming is disclosed. The forecast results show good agreement with the experimental results.
引用
收藏
页码：294 / 299
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